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Commit b97b59b9 authored by Stanislav Fomichev's avatar Stanislav Fomichev Committed by Jiri Olsa
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perf timechart: Implement IO mode 

Currently, timechart records only scheduler and CPU events (task switches,
running times, CPU power states, etc); this commit adds IO mode which
makes it possible to record IO (disk, network) activity. In this mode
perf timechart will generate SVG with IO charts (writes, reads, tx, rx, polls).
Signed-off-by: default avatarStanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/n/1404835423-23098-3-git-send-email-stfomichev@yandex-team.ruSigned-off-by: default avatarJiri Olsa <jolsa@kernel.org>
parent f8dda74f
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Showing with 725 additions and 24 deletions
tools/perf/Documentation/perf-timechart.txt
View file @ b97b59b9
......@@ -15,10 +15,20 @@ DESCRIPTION
There are two variants of perf timechart:
'perf timechart record <command>' to record the system level events
of an arbitrary workload.
of an arbitrary workload. By default timechart records only scheduler
and CPU events (task switches, running times, CPU power states, etc),
but it's possible to record IO (disk, network) activity using -I argument.
'perf timechart' to turn a trace into a Scalable Vector Graphics file,
that can be viewed with popular SVG viewers such as 'Inkscape'.
that can be viewed with popular SVG viewers such as 'Inkscape'. Depending
on the events in the perf.data file, timechart will contain scheduler/cpu
events or IO events.
In IO mode, every bar has two charts: upper and lower.
Upper bar shows incoming events (disk reads, ingress network packets).
Lower bar shows outgoing events (disk writes, egress network packets).
There are also poll bars which show how much time application spent
in poll/epoll/select syscalls.
TIMECHART OPTIONS
-----------------
......@@ -63,6 +73,9 @@ RECORD OPTIONS
-T::
--tasks-only::
Record only tasks-related events
-I::
--io-only::
Record only io-related events
-g::
--callchain::
Do call-graph (stack chain/backtrace) recording
......@@ -87,6 +100,14 @@ Record system-wide timechart:
$ perf timechart --highlight gcc
Record system-wide IO events:
$ perf timechart record -I
then generate timechart:
$ perf timechart
SEE ALSO
--------
linkperf:perf-record[1]
tools/perf/builtin-timechart.c
View file @ b97b59b9
This diff is collapsed.
tools/perf/util/svghelper.c
View file @ b97b59b9
......@@ -30,6 +30,7 @@ static u64 turbo_frequency, max_freq;
#define SLOT_MULT 30.0
#define SLOT_HEIGHT 25.0
#define SLOT_HALF (SLOT_HEIGHT / 2)
int svg_page_width = 1000;
u64 svg_highlight;
......@@ -114,8 +115,14 @@ void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
fprintf(svgfile, " rect { stroke-width: 1; }\n");
fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.process3 { fill:rgb(180,180,180); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.sample_hi{ fill:rgb(255,128, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.error { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.net { fill:rgb( 0,128, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.disk { fill:rgb( 0, 0,255); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.sync { fill:rgb(128,128, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.poll { fill:rgb( 0,128,128); fill-opacity:0.2; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.waiting { fill:rgb(224,214, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
......@@ -132,6 +139,75 @@ void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
fprintf(svgfile, " ]]>\n </style>\n</defs>\n");
}
static double normalize_height(double height)
{
if (height < 0.25)
return 0.25;
else if (height < 0.50)
return 0.50;
else if (height < 0.75)
return 0.75;
else
return 0.100;
}
void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
{
double w = time2pixels(end) - time2pixels(start);
height = normalize_height(height);
if (!svgfile)
return;
fprintf(svgfile, "<g>\n");
fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
time2pixels(start),
w,
Yslot * SLOT_MULT,
SLOT_HALF * height,
type);
fprintf(svgfile, "</g>\n");
}
void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
{
double w = time2pixels(end) - time2pixels(start);
height = normalize_height(height);
if (!svgfile)
return;
fprintf(svgfile, "<g>\n");
fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
time2pixels(start),
w,
Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HALF * height,
SLOT_HALF * height,
type);
fprintf(svgfile, "</g>\n");
}
void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges)
{
double w = time2pixels(end) - time2pixels(start);
height = normalize_height(height);
if (!svgfile)
return;
fprintf(svgfile, "<g>\n");
fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges);
fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n",
time2pixels(start),
w,
Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HEIGHT * height,
SLOT_HEIGHT * height,
type);
fprintf(svgfile, "</g>\n");
}
void svg_box(int Yslot, u64 start, u64 end, const char *type)
{
if (!svgfile)
......@@ -543,6 +619,20 @@ static void svg_legenda_box(int X, const char *text, const char *style)
X + boxsize + 5, boxsize, 0.8 * boxsize, text);
}
void svg_io_legenda(void)
{
if (!svgfile)
return;
fprintf(svgfile, "<g>\n");
svg_legenda_box(0, "Disk", "disk");
svg_legenda_box(100, "Network", "net");
svg_legenda_box(200, "Sync", "sync");
svg_legenda_box(300, "Poll", "poll");
svg_legenda_box(400, "Error", "error");
fprintf(svgfile, "</g>\n");
}
void svg_legenda(void)
{
if (!svgfile)
......@@ -559,7 +649,7 @@ void svg_legenda(void)
fprintf(svgfile, "</g>\n");
}
void svg_time_grid(void)
void svg_time_grid(double min_thickness)
{
u64 i;
......@@ -579,8 +669,10 @@ void svg_time_grid(void)
color = 128;
}
fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n",
time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
if (thickness >= min_thickness)
fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n",
time2pixels(i), SLOT_MULT/2, time2pixels(i),
total_height, color, color, color, thickness);
i += 10000000;
}
......
tools/perf/util/svghelper.h
View file @ b97b59b9
......@@ -4,6 +4,9 @@
#include <linux/types.h>
extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
extern void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_box(int Yslot, u64 start, u64 end, const char *type);
extern void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
extern void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
......@@ -16,7 +19,8 @@ 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(void);
extern void svg_time_grid(double min_thickness);
extern void svg_io_legenda(void);
extern void svg_legenda(void);
extern void svg_wakeline(u64 start, int row1, int row2, const char *backtrace);
extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace);
......
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