On 10/2/2017 7:52 PM, Jiri Olsa wrote: > On Thu, Sep 28, 2017 at 08:45:20PM +0800, Jin Yao wrote: >> perf report has a --time option to limit the time range of output. >> It only supports absolute time. >> >> Now this option is extended to support multiple time ranges and >> support the percent of time. >> >> For example: >> >> 1. Select the first and second 10% time slices >> perf report --time 10%/1,10%/2 > > hum, this one passes: > > [jolsa@krava perf]$ ./perf script --time 10%/10x12321xsdfdasfdsafdsafdsa > yes 20923 218485.067881: 9263754 cycles:ppp: > ffffffffa4263cca __vfs_write ([kernel.kallsyms]) > yes 20923 218485.070805: 6734429666984 cycles:ppp: > ffffffffa42659e3 sys_write ([kernel.kallsyms]) > yes 20923 218485.181272: 6927427 cycles:ppp: > ffffffffa42643b3 vfs_write ([kernel.kallsyms]) > yes 20923 218485.183446: 7696489147307 cycles:ppp: > ffffffffa442a9ee lockref_put_return ([kernel.kallsyms]) > yes 20923 218485.292921: 9265358 cycles:ppp: > 5648b27c63b0 _init (/usr/bin/yes) > yes 20923 218485.295866: 6734429665913 cycles:ppp: > ffffffffa42641b7 rw_verify_area ([kernel.kallsyms]) > yes 20923 218485.406225: 6930289 cycles:ppp: > ffffffffa42ab8dd __fsnotify_parent ([kernel.kallsyms]) > yes 20923 218485.408399: 7696489149499 cycles:ppp: > ffffffffa426418f rw_verify_area ([kernel.kallsyms]) > yes 20923 218485.517885: 9266280 cycles:ppp: > ffffffffa42ab926 __fsnotify_parent ([kernel.kallsyms]) > yes 20923 218485.520860: 6734429663933 cycles:ppp: > 5648b27c6ccb full_write (/usr/bin/yes) > > please add a test for this > > jirka >
Sorry, I will add test for checking this case. Thanks Jin Yao
