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Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change perf_counter: x86: Fix PMU resource leak perf util: SVG performance improvements perf util: Make the timechart SVG width dynamic perf timechart: Show the duration of scheduler delays in the SVG perf timechart: Show the name of the waker/wakee in timechart
This commit is contained in:
Linus Torvalds
commit
f4eccb6d97
8 changed files with 170 additions and 69 deletions
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@ -1162,7 +1162,6 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
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*/
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if (record) {
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struct perf_sample_data data = {
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.regs = regs,
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.addr = 0,
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.period = counter->hw.last_period,
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};
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@ -1170,7 +1169,7 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
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if (counter->attr.sample_type & PERF_SAMPLE_ADDR)
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perf_get_data_addr(regs, &data.addr);
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if (perf_counter_overflow(counter, nmi, &data)) {
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if (perf_counter_overflow(counter, nmi, &data, regs)) {
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/*
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* Interrupts are coming too fast - throttle them
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* by setting the counter to 0, so it will be
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@ -493,7 +493,6 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
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regs = args->regs;
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data.regs = regs;
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data.addr = 0;
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cpuc = &__get_cpu_var(cpu_hw_counters);
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@ -513,7 +512,7 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
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if (!sparc_perf_counter_set_period(counter, hwc, idx))
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continue;
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if (perf_counter_overflow(counter, 1, &data))
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if (perf_counter_overflow(counter, 1, &data, regs))
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sparc_pmu_disable_counter(hwc, idx);
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}
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@ -924,6 +924,8 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
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if (err)
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return err;
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counter->destroy = hw_perf_counter_destroy;
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/*
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* Generate PMC IRQs:
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* (keep 'enabled' bit clear for now)
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@ -953,8 +955,6 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
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return -EOPNOTSUPP;
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}
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counter->destroy = hw_perf_counter_destroy;
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/*
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* Raw event type provide the config in the event structure
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*/
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@ -2107,8 +2107,11 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
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int err;
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err = __hw_perf_counter_init(counter);
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if (err)
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if (err) {
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if (counter->destroy)
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counter->destroy(counter);
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return ERR_PTR(err);
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}
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return &pmu;
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}
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@ -849,23 +849,6 @@ static inline void perf_counter_comm(struct task_struct *tsk) { }
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static inline void perf_counter_fork(struct task_struct *tsk) { }
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static inline void perf_counter_init(void) { }
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static inline int
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perf_output_begin(struct perf_output_handle *handle, struct perf_counter *c,
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unsigned int size, int nmi, int sample) { }
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static inline void perf_output_end(struct perf_output_handle *handle) { }
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static inline void
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perf_output_copy(struct perf_output_handle *handle,
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const void *buf, unsigned int len) { }
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static inline void
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perf_output_sample(struct perf_output_handle *handle,
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struct perf_event_header *header,
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struct perf_sample_data *data,
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struct perf_counter *counter) { }
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static inline void
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perf_prepare_sample(struct perf_event_header *header,
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struct perf_sample_data *data,
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struct perf_counter *counter,
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struct pt_regs *regs) { }
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#endif
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#define perf_output_put(handle, x) \
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@ -28,6 +28,9 @@ OPTIONS
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-i::
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--input=::
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Select the input file (default: perf.data)
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-w::
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--width=::
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Select the width of the SVG file (default: 1000)
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SEE ALSO
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@ -752,6 +752,7 @@ static void draw_wakeups(void)
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we = wake_events;
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while (we) {
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int from = 0, to = 0;
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char *task_from = NULL, *task_to = NULL;
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/* locate the column of the waker and wakee */
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p = all_data;
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@ -760,10 +761,14 @@ static void draw_wakeups(void)
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c = p->all;
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while (c) {
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if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
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if (p->pid == we->waker)
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if (p->pid == we->waker) {
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from = c->Y;
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if (p->pid == we->wakee)
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task_from = c->comm;
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}
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if (p->pid == we->wakee) {
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to = c->Y;
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task_to = c->comm;
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}
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}
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c = c->next;
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}
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@ -776,7 +781,7 @@ static void draw_wakeups(void)
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else if (from && to && abs(from - to) == 1)
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svg_wakeline(we->time, from, to);
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else
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svg_partial_wakeline(we->time, from, to);
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svg_partial_wakeline(we->time, from, task_from, to, task_to);
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we = we->next;
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}
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}
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@ -822,15 +827,15 @@ static void draw_process_bars(void)
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continue;
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}
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svg_box(Y, p->start_time, p->end_time, "process");
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svg_box(Y, c->start_time, c->end_time, "process");
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sample = c->samples;
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while (sample) {
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if (sample->type == TYPE_RUNNING)
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svg_sample(Y, sample->cpu, sample->start_time, sample->end_time, "sample");
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svg_sample(Y, sample->cpu, sample->start_time, sample->end_time);
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if (sample->type == TYPE_BLOCKED)
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svg_box(Y, sample->start_time, sample->end_time, "blocked");
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if (sample->type == TYPE_WAITING)
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svg_box(Y, sample->start_time, sample->end_time, "waiting");
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svg_waiting(Y, sample->start_time, sample->end_time);
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sample = sample->next;
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}
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@ -910,9 +915,9 @@ static void write_svg_file(const char *filename)
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if (count < 15)
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count = determine_display_tasks(TIME_THRESH / 10);
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open_svg(filename, numcpus, count);
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open_svg(filename, numcpus, count, first_time, last_time);
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svg_time_grid(first_time, last_time);
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svg_time_grid();
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svg_legenda();
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for (i = 0; i < numcpus; i++)
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@ -1127,6 +1132,8 @@ static const struct option options[] = {
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"input file name"),
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OPT_STRING('o', "output", &output_name, "file",
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"output file name"),
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OPT_INTEGER('w', "width", &svg_page_width,
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"page width"),
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OPT_END()
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};
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@ -25,7 +25,8 @@ static u64 turbo_frequency, max_freq;
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#define SLOT_MULT 30.0
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#define SLOT_HEIGHT 25.0
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#define WIDTH 1000.0
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int svg_page_width = 1000;
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#define MIN_TEXT_SIZE 0.001
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@ -46,21 +47,54 @@ static double time2pixels(u64 time)
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{
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double X;
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X = WIDTH * (time - first_time) / (last_time - first_time);
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X = 1.0 * svg_page_width * (time - first_time) / (last_time - first_time);
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return X;
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}
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void open_svg(const char *filename, int cpus, int rows)
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/*
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* Round text sizes so that the svg viewer only needs a discrete
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* number of renderings of the font
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*/
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static double round_text_size(double size)
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{
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int loop = 100;
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double target = 10.0;
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if (size >= 10.0)
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return size;
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while (loop--) {
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if (size >= target)
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return target;
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target = target / 2.0;
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}
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return size;
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}
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void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
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{
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int new_width;
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svgfile = fopen(filename, "w");
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if (!svgfile) {
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fprintf(stderr, "Cannot open %s for output\n", filename);
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return;
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}
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first_time = start;
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first_time = first_time / 100000000 * 100000000;
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last_time = end;
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/*
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* if the recording is short, we default to a width of 1000, but
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* for longer recordings we want at least 200 units of width per second
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*/
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new_width = (last_time - first_time) / 5000000;
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if (new_width > svg_page_width)
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svg_page_width = new_width;
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total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
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fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
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fprintf(svgfile, "<svg width=\"%4.1f\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", WIDTH, total_height);
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fprintf(svgfile, "<svg width=\"%i\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
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fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
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@ -69,7 +103,8 @@ void open_svg(const char *filename, int cpus, int rows)
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fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.waiting { fill:rgb(255,255, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.waiting { fill:rgb(214,214, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
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fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
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fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
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fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
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@ -92,26 +127,78 @@ void svg_box(int Yslot, u64 start, u64 end, const char *type)
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time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
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}
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void svg_sample(int Yslot, int cpu, u64 start, u64 end, const char *type)
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void svg_sample(int Yslot, int cpu, u64 start, u64 end)
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{
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double text_size;
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if (!svgfile)
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return;
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fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
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time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
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fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
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time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
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text_size = (time2pixels(end)-time2pixels(start));
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if (cpu > 9)
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text_size = text_size/2;
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if (text_size > 1.25)
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text_size = 1.25;
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text_size = round_text_size(text_size);
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if (text_size > MIN_TEXT_SIZE)
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fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%i</text>\n",
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fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
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time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
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}
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static char *time_to_string(u64 duration)
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{
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static char text[80];
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text[0] = 0;
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if (duration < 1000) /* less than 1 usec */
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return text;
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if (duration < 1000 * 1000) { /* less than 1 msec */
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sprintf(text, "%4.1f us", duration / 1000.0);
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return text;
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}
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sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
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return text;
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}
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void svg_waiting(int Yslot, u64 start, u64 end)
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{
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char *text;
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const char *style;
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double font_size;
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if (!svgfile)
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return;
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style = "waiting";
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if (end-start > 10 * 1000000) /* 10 msec */
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style = "WAITING";
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text = time_to_string(end-start);
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font_size = 1.0 * (time2pixels(end)-time2pixels(start));
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if (font_size > 3)
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font_size = 3;
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font_size = round_text_size(font_size);
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fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
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fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
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time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
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if (font_size > MIN_TEXT_SIZE)
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fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
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font_size, text);
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fprintf(svgfile, "</g>\n");
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}
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static char *cpu_model(void)
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{
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static char cpu_m[255];
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@ -148,7 +235,7 @@ void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
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cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
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sprintf(cpu_string, "CPU %i", (int)cpu+1);
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fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
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fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
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10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
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fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
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@ -162,15 +249,21 @@ void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name
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if (!svgfile)
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return;
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fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
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time2pixels(start), time2pixels(end)-time2pixels(start), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT, type);
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fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
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fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
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time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
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width = time2pixels(end)-time2pixels(start);
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if (width > 6)
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width = 6;
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width = round_text_size(width);
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if (width > MIN_TEXT_SIZE)
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fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">%s</text>\n",
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time2pixels(start), cpu2y(cpu), width, name);
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fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
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width, name);
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fprintf(svgfile, "</g>\n");
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}
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void svg_cstate(int cpu, u64 start, u64 end, int type)
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@ -191,13 +284,15 @@ void svg_cstate(int cpu, u64 start, u64 end, int type)
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time2pixels(start), time2pixels(end)-time2pixels(start),
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cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
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width = time2pixels(end)-time2pixels(start);
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width = (time2pixels(end)-time2pixels(start))/2.0;
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if (width > 6)
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width = 6;
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width = round_text_size(width);
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if (width > MIN_TEXT_SIZE)
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fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">C%i</text>\n",
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||||
time2pixels(start), cpu2y(cpu), width, type);
|
||||
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
|
||||
time2pixels(start), cpu2y(cpu)+width, width, type);
|
||||
}
|
||||
|
||||
static char *HzToHuman(unsigned long hz)
|
||||
|
|
@ -236,13 +331,13 @@ void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
|
|||
height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
|
||||
fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
|
||||
time2pixels(start), time2pixels(end), height, height);
|
||||
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"0.25pt\">%s</text>\n",
|
||||
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
|
||||
time2pixels(start), height+0.9, HzToHuman(freq));
|
||||
|
||||
}
|
||||
|
||||
|
||||
void svg_partial_wakeline(u64 start, int row1, int row2)
|
||||
void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
|
||||
{
|
||||
double height;
|
||||
|
||||
|
|
@ -251,21 +346,35 @@ void svg_partial_wakeline(u64 start, int row1, int row2)
|
|||
|
||||
|
||||
if (row1 < row2) {
|
||||
if (row1)
|
||||
if (row1) {
|
||||
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
|
||||
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
|
||||
|
||||
if (row2)
|
||||
if (desc2)
|
||||
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n",
|
||||
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
|
||||
}
|
||||
if (row2) {
|
||||
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
|
||||
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
|
||||
if (desc1)
|
||||
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n",
|
||||
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
|
||||
}
|
||||
} else {
|
||||
if (row2)
|
||||
if (row2) {
|
||||
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
|
||||
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
|
||||
|
||||
if (row1)
|
||||
if (desc1)
|
||||
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n",
|
||||
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
|
||||
}
|
||||
if (row1) {
|
||||
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
|
||||
time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
|
||||
if (desc2)
|
||||
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n",
|
||||
time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
|
||||
}
|
||||
}
|
||||
height = row1 * SLOT_MULT;
|
||||
if (row2 > row1)
|
||||
|
|
@ -313,7 +422,7 @@ void svg_text(int Yslot, u64 start, const char *text)
|
|||
if (!svgfile)
|
||||
return;
|
||||
|
||||
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
|
||||
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
|
||||
time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
|
||||
}
|
||||
|
||||
|
|
@ -324,7 +433,7 @@ static void svg_legenda_box(int X, const char *text, const char *style)
|
|||
|
||||
fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
|
||||
X, boxsize, boxsize, style);
|
||||
fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.4fpt\">%s</text>\n",
|
||||
fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
|
||||
X + boxsize + 5, boxsize, 0.8 * boxsize, text);
|
||||
}
|
||||
|
||||
|
|
@ -342,15 +451,10 @@ void svg_legenda(void)
|
|||
svg_legenda_box(800, "Blocked on IO", "blocked");
|
||||
}
|
||||
|
||||
void svg_time_grid(u64 start, u64 end)
|
||||
void svg_time_grid(void)
|
||||
{
|
||||
u64 i;
|
||||
|
||||
first_time = start;
|
||||
last_time = end;
|
||||
|
||||
first_time = first_time / 100000000 * 100000000;
|
||||
|
||||
if (!svgfile)
|
||||
return;
|
||||
|
||||
|
|
|
|||
|
|
@ -3,9 +3,10 @@
|
|||
|
||||
#include "types.h"
|
||||
|
||||
extern void open_svg(const char *filename, int cpus, int rows);
|
||||
extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
|
||||
extern void svg_box(int Yslot, u64 start, u64 end, const char *type);
|
||||
extern void svg_sample(int Yslot, int cpu, u64 start, u64 end, const char *type);
|
||||
extern void svg_sample(int Yslot, int cpu, u64 start, u64 end);
|
||||
extern void svg_waiting(int Yslot, u64 start, u64 end);
|
||||
extern void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency);
|
||||
|
||||
|
||||
|
|
@ -14,12 +15,14 @@ extern void svg_cstate(int cpu, u64 start, u64 end, int type);
|
|||
extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq);
|
||||
|
||||
|
||||
extern void svg_time_grid(u64 start, u64 end);
|
||||
extern void svg_time_grid(void);
|
||||
extern void svg_legenda(void);
|
||||
extern void svg_wakeline(u64 start, int row1, int row2);
|
||||
extern void svg_partial_wakeline(u64 start, int row1, int row2);
|
||||
extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2);
|
||||
extern void svg_interrupt(u64 start, int row);
|
||||
extern void svg_text(int Yslot, u64 start, const char *text);
|
||||
extern void svg_close(void);
|
||||
|
||||
extern int svg_page_width;
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue