Milian Wolff 834fd46ddb perf trace: Add total time column to summary. ... It is cumbersome to manually calculate the total time spent in a given syscall by multiplying the average value with the number of calls. Instead, we now do this directly inside perf trace. Note that this is also done by 'strace', which even adds a column with relative numbers - something we could do in the future. Example: perf trace -s find /some/folder > /dev/null Summary of events: find (19976), 700123 events, 100.0%, 0.000 msec syscall calls total min avg max stddev (msec) (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- --------- ------ read 4 0.006 0.001 0.002 0.003 27.42% write 8046 9.617 0.001 0.001 0.035 0.56% open 34196 40.384 0.001 0.001 0.071 0.30% close 68375 57.104 0.001 0.001 0.076 0.25% stat 4 0.004 0.001 0.001 0.001 3.14% fstat 34189 27.518 0.001 0.001 0.060 0.34% mmap 13 0.029 0.001 0.002 0.003 10.74% mprotect 6 0.018 0.002 0.003 0.005 17.04% munmap 3 0.014 0.003 0.005 0.006 24.87% brk 87 0.490 0.001 0.006 0.016 6.50% ioctl 3 0.004 0.001 0.001 0.003 36.39% access 1 0.004 0.004 0.004 0.004 0.00% uname 1 0.001 0.001 0.001 0.001 0.00% getdents 68393 143.600 0.001 0.002 0.187 0.95% fchdir 68371 56.980 0.001 0.001 0.111 0.39% arch_prctl 1 0.001 0.001 0.001 0.001 0.00% openat 34184 41.737 0.001 0.001 0.102 0.41% newfstatat 34184 41.180 0.001 0.001 0.064 0.34% Signed-off-by: Milian Wolff <milian.wolff@kdab.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> LPU-Reference: 1438853069-5902-1-git-send-email-milian.wolff@kdab.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2015-08-06 11:29:49 -03:00
..
arch	tools include: Add basic atomic.h implementation from the kernel sources	2015-05-08 16:11:05 -03:00
build	perf tools: Fix build errors with mipsel-linux-uclibc compiler	2015-08-05 16:56:16 -03:00
cgroup
firewire
hv	Drivers: hv: fcopy: full handshake support	2015-05-24 12:17:42 -07:00
iio	tools:iio:iio_utils: pass strings as const	2015-06-01 08:40:26 +01:00
include	tools: Copy rbtree_augmented.h from the kernel	2015-07-05 22:59:05 -03:00
laptop/freefall	Move freefall program from Documentation/ to tools/	2015-06-08 16:42:07 -06:00
lguest	tools/lguest: don't use legacy definitions for net device in example launcher.	2015-02-13 17:15:55 +10:30
lib	tools lib traceevent: Allow setting an alternative symbol resolver	2015-07-23 22:01:26 -03:00
net	tools: bpf_jit_disasm: fix segfault on disabled debugging log output	2015-05-27 00:24:10 -04:00
nfsd
perf	perf trace: Add total time column to summary.	2015-08-06 11:29:49 -03:00
power	Additional ACPICA material for v4.2-rc1	2015-07-02 17:11:28 -07:00
scripts
testing	tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test	2015-07-10 14:07:03 -04:00
thermal/tmon	tools/thermal: tmon: fixed the 'make install' command	2015-05-09 13:36:58 +08:00
time	tools: add script to test udelay	2014-07-23 10:16:38 -07:00
usb	tools: ffs-aio-example: use endpoint addresses from descriptors	2015-01-15 09:41:49 -06:00
virtio	tools/virtio: add virtio 1.0 in vringh_test	2014-12-15 23:49:22 +02:00
vm	tools: Fix tools/vm build	2015-05-12 18:11:06 -03:00
Makefile	Staging driver patches for 4.2-rc1	2015-06-26 15:46:08 -07:00