diff options
| author | Emilio G. Cota <cota@braap.org> | 2017-08-08 13:54:42 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-23 18:46:25 +0200 |
| commit | 97bfafe28ab3d1cd9336a3d6f63384ff12e3f434 (patch) | |
| tree | abfa3404a56c7cfe80da703855516cb5231f1b2f /monitor.c | |
| parent | dd12e1bbf2a41b0f6ce450a5449e536df0909520 (diff) | |
hmp-commands-info: add sync-profile
The command introduced here is just for developers. This means that:
- the info displayed and the output format could change in the future
- the command is only meant to be used from HMP, not from QMP
Sample output:
(qemu) sync-profile
sync-profile is off
(qemu) info sync-profile
Type Object Call site Wait Time (s) Count Average (us)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
(qemu) sync-profile on
(qemu) sync-profile
sync-profile is on
(qemu) info sync-profile 15
Type Object Call site Wait Time (s) Count Average (us)
----------------------------------------------------------------------------------------------
condvar 0x55a01813ced0 cpus.c:1165 91.38235 2842 32154.24
BQL mutex 0x55a0171b7140 cpus.c:1434 12.56490 5787 2171.23
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:432 7.75846 2844 2728.01
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:870 5.09889 2884 1767.99
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:529 3.46140 3254 1063.74
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:804 0.76333 8655 88.20
BQL mutex 0x55a0171b7140 cpus.c:1466 0.60893 2941 207.05
BQL mutex 0x55a0171b7140 util/main-loop.c:236 0.00894 6425 1.39
mutex [ 3] util/qemu-timer.c:520 0.00342 50611 0.07
mutex [ 2] util/qemu-timer.c:426 0.00254 31336 0.08
mutex [ 3] util/qemu-timer.c:234 0.00107 19275 0.06
mutex 0x55a0171d9960 vl.c:763 0.00043 6425 0.07
mutex 0x55a0180d1bb0 monitor.c:458 0.00015 1603 0.09
mutex 0x55a0180e4c78 chardev/char.c:109 0.00002 217 0.08
mutex 0x55a0180d1bb0 monitor.c:448 0.00001 162 0.08
----------------------------------------------------------------------------------------------
(qemu) info sync-profile -m 15
Type Object Call site Wait Time (s) Count Average (us)
----------------------------------------------------------------------------------------------
condvar 0x55a01813ced0 cpus.c:1165 95.11196 3051 31174.03
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:432 7.92108 3052 2595.37
BQL mutex 0x55a0171b7140 cpus.c:1434 13.38253 6210 2155.00
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:870 5.09901 3093 1648.57
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:529 4.21123 3468 1214.31
BQL mutex 0x55a0171b7140 cpus.c:1466 0.60895 3156 192.95
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:804 0.76337 9282 82.24
BQL mutex 0x55a0171b7140 util/main-loop.c:236 0.00944 6889 1.37
mutex 0x55a01813ce80 tcg/tcg.c:397 0.00000 24 0.15
mutex 0x55a0180d1bb0 monitor.c:458 0.00018 1922 0.09
mutex [ 2] util/qemu-timer.c:426 0.00266 32710 0.08
mutex 0x55a0180e4c78 chardev/char.c:109 0.00002 260 0.08
mutex 0x55a0180d1bb0 monitor.c:448 0.00001 187 0.08
mutex 0x55a0171d9960 vl.c:763 0.00047 6889 0.07
mutex [ 3] util/qemu-timer.c:520 0.00362 53377 0.07
----------------------------------------------------------------------------------------------
(qemu) info sync-profile -m -n 15
Type Object Call site Wait Time (s) Count Average (us)
----------------------------------------------------------------------------------------------
condvar 0x55a01813ced0 cpus.c:1165 101.39331 3398 29839.12
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:432 7.92112 3399 2330.43
BQL mutex 0x55a0171b7140 cpus.c:1434 14.28280 6922 2063.39
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:870 5.77505 3445 1676.36
BQL mutex 0x55a0171b7140 accel/tcg/cpu-exec.c:529 5.66139 3883 1457.99
BQL mutex 0x55a0171b7140 cpus.c:1466 0.60901 3519 173.06
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:804 0.76351 10338 73.85
BQL mutex 0x55a0171b7140 util/main-loop.c:236 0.01032 7664 1.35
mutex 0x55a0180e4f08 util/qemu-timer.c:426 0.00041 901 0.45
mutex 0x55a01813ce80 tcg/tcg.c:397 0.00000 24 0.15
mutex 0x55a0180d1bb0 monitor.c:458 0.00022 2319 0.09
mutex 0x55a0180e4c78 chardev/char.c:109 0.00003 306 0.08
mutex 0x55a0180e4f08 util/qemu-timer.c:520 0.00068 8565 0.08
mutex 0x55a0180d1bb0 monitor.c:448 0.00002 215 0.08
mutex 0x55a0180e4f78 util/qemu-timer.c:426 0.00247 34224 0.07
----------------------------------------------------------------------------------------------
(qemu) sync-profile reset
(qemu) info sync-profile -m 2
Type Object Call site Wait Time (s) Count Average (us)
--------------------------------------------------------------------------------------------
condvar 0x55a01813ced0 cpus.c:1165 2.78756 99 28157.12
BQL mutex 0x55a0171b7140 accel/tcg/cputlb.c:870 0.33054 102 3240.55
--------------------------------------------------------------------------------------------
(qemu) sync-profile off
(qemu) sync-profile
sync-profile is off
(qemu) sync-profile reset
(qemu) info sync-profile
Type Object Call site Wait Time (s) Count Average (us)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'monitor.c')
| -rw-r--r-- | monitor.c | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -1454,6 +1454,17 @@ static void hmp_info_opcount(Monitor *mon, const QDict *qdict) } #endif +static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict) +{ + int64_t max = qdict_get_try_int(qdict, "max", 10); + bool mean = qdict_get_try_bool(qdict, "mean", false); + bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false); + enum QSPSortBy sort_by; + + sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME; + qsp_report((FILE *)mon, monitor_fprintf, max, sort_by, coalesce); +} + static void hmp_info_history(Monitor *mon, const QDict *qdict) { int i; |