* Double sys_exit_pread64 tracepoint event
@ 2021-04-12 14:29 Alexey Dobriyan
0 siblings, 0 replies; only message in thread
From: Alexey Dobriyan @ 2021-04-12 14:29 UTC (permalink / raw)
To: linux-perf-users
I was tracing trivial fio workload which does pread in 4 threads
on 4 different CPUs and got double exit event:
fio 7371 [000] 5670.259136: syscalls:sys_enter_pread64: fd: 0x00000007, buf: 0x7f2c4c001000, count: 0x00001000, pos: 0x075c1000
fio 7371 [000] 5670.259167: syscalls:sys_exit_pread64: 0x1000
fio 7371 [000] 5670.259167: syscalls:sys_exit_pread64: 0x1000 *****
fio 7371 [000] 5670.259169: syscalls:sys_enter_pread64: fd: 0x00000007, buf: 0x7f2c4c001000, count: 0x00001000, pos: 0x075c2000
fio 7371 [000] 5670.259199: syscalls:sys_exit_pread64: 0x1000
Is this supposed to happen every once in a while?
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-04-12 14:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-12 14:29 Double sys_exit_pread64 tracepoint event Alexey Dobriyan
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).