On Tue, Aug 14, 2018 at 10:14:01 +0200, Paolo Bonzini wrote:
> On 13/08/2018 19:11, Emilio G. Cota wrote:
> Would it make sense to add a flag to sort by average wait time
Done:
(qemu) help info sync-profile
info sync-profile [-m] [max] -- show sync profiling info \
for up to max entries (default: 10). By default, entries \
are sorted by total wait time; -m sorts by mean wait time.
(qemu) info sync-profile 3
Type Object Call site Wait Time (s) Count Average
(us)
------------------------------------------------------------------------------------
condvar 0x560cc9909e50 cpus.c:1165 63.63428 16081
3957.11
condvar 0x560cc9909e50 cpus.c:1415 0.21074 2
105371.07
BQL mutex 0x560cc85a3fa0 util/rcu.c:269 0.20227 20
10113.60
------------------------------------------------------------------------------------
(qemu) info sync-profile -m 3
Type Object Call site Wait Time (s) Count Average
(us)
------------------------------------------------------------------------------------
condvar 0x560cc9909e50 cpus.c:1415 0.21074 2
105371.07
BQL mutex 0x560cc85a3fa0 util/rcu.c:269 0.20227 21
9632.00
condvar 0x560cc9909e50 cpus.c:1165 71.92799 18167
3959.27
------------------------------------------------------------------------------------
>, and one to coalesce all mutexes for the same call site?
I am not sure I understand. Do you mean to pass a specific call site,
so that we coalesce all entries related to the call site's object?
Or to keep the call sites separate, but only report entries related
to that specific call site's object?
Thanks,
Emilio
