* perf script timestamp
@ 2013-04-24 8:22 OSDepend
2013-04-24 13:10 ` David Ahern
0 siblings, 1 reply; 2+ messages in thread
From: OSDepend @ 2013-04-24 8:22 UTC (permalink / raw)
To: linux-perf-users
Hi guys,
I just try to use perf script, and get some thing like below:
java 15893 [015] 96380.588871: timer_cancel: timer=0xffff8804379d6698
java 15721 [010] 96380.588872: timer_cancel: timer=0xffff8800be3d6698
java 15893 [015] 96380.588875: timer_expire_entry: timer=0xffff8804379d6698 function=delayed_work_timer_fn now=4391194790
java 15721 [010] 96380.588876: timer_expire_entry: timer=0xffff8800be3d6698 function=delayed_work_timer_fn now=4391194790
I want to know exactly about the time units of the events, such as 96380.588871, and 96380.588872.
The number befor "." is second or millisecond? and Is the number after "." nanoseconds or microseconds?
I'm a little confused about the documation for ktime_t, please help me out!
Best,
Chen
2013-04-24
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: perf script timestamp
2013-04-24 8:22 perf script timestamp OSDepend
@ 2013-04-24 13:10 ` David Ahern
0 siblings, 0 replies; 2+ messages in thread
From: David Ahern @ 2013-04-24 13:10 UTC (permalink / raw)
To: OSDepend; +Cc: linux-perf-users
On 4/24/13 2:22 AM, OSDepend wrote:
> Hi guys,
> I just try to use perf script, and get some thing like below:
> java 15893 [015] 96380.588871: timer_cancel: timer=0xffff8804379d6698
> java 15721 [010] 96380.588872: timer_cancel: timer=0xffff8800be3d6698
> java 15893 [015] 96380.588875: timer_expire_entry: timer=0xffff8804379d6698 function=delayed_work_timer_fn now=4391194790
> java 15721 [010] 96380.588876: timer_expire_entry: timer=0xffff8800be3d6698 function=delayed_work_timer_fn now=4391194790
>
> I want to know exactly about the time units of the events, such as 96380.588871, and 96380.588872.
> The number befor "." is second or millisecond? and Is the number after "." nanoseconds or microseconds?
> I'm a little confused about the documation for ktime_t, please help me out!
times are <seconds>.<microseconds>
David
^ permalink raw reply [flat|nested] 2+ messages in thread
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