diff options
| -rw-r--r-- | tools/perf/Documentation/perf-timechart.txt | 3 | ||||
| -rw-r--r-- | tools/perf/builtin-timechart.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/svghelper.c | 30 | ||||
| -rw-r--r-- | tools/perf/util/svghelper.h | 6 |
4 files changed, 31 insertions, 14 deletions
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index 61e0104..1c2ed30 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -28,6 +28,9 @@ OPTIONS -i:: --input=:: Select the input file (default: perf.data) +-w:: +--width=:: + Select the width of the SVG file (default: 1000) SEE ALSO diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 23b3f09..6004063 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -915,9 +915,9 @@ static void write_svg_file(const char *filename) if (count < 15) count = determine_display_tasks(TIME_THRESH / 10); - open_svg(filename, numcpus, count); + open_svg(filename, numcpus, count, first_time, last_time); - svg_time_grid(first_time, last_time); + svg_time_grid(); svg_legenda(); for (i = 0; i < numcpus; i++) @@ -1132,6 +1132,8 @@ static const struct option options[] = { "input file name"), OPT_STRING('o', "output", &output_name, "file", "output file name"), + OPT_INTEGER('w', "width", &svg_page_width, + "page width"), OPT_END() }; diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c index 52f628f..be1555e 100644 --- a/tools/perf/util/svghelper.c +++ b/tools/perf/util/svghelper.c @@ -25,7 +25,8 @@ static u64 turbo_frequency, max_freq; #define SLOT_MULT 30.0 #define SLOT_HEIGHT 25.0 -#define WIDTH 1000.0 + +int svg_page_width = 1000; #define MIN_TEXT_SIZE 0.001 @@ -46,21 +47,35 @@ static double time2pixels(u64 time) { double X; - X = WIDTH * (time - first_time) / (last_time - first_time); + X = 1.0 * svg_page_width * (time - first_time) / (last_time - first_time); return X; } -void open_svg(const char *filename, int cpus, int rows) +void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end) { + int new_width; svgfile = fopen(filename, "w"); if (!svgfile) { fprintf(stderr, "Cannot open %s for output\n", filename); return; } + first_time = start; + first_time = first_time / 100000000 * 100000000; + last_time = end; + + /* + * if the recording is short, we default to a width of 1000, but + * for longer recordings we want at least 200 units of width per second + */ + new_width = (last_time - first_time) / 5000000; + + if (new_width > svg_page_width) + svg_page_width = new_width; + total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT; fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n"); - fprintf(svgfile, "<svg width=\"%4.1f\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", WIDTH, total_height); + fprintf(svgfile, "<svg width=\"%i\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height); fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <