diff options
| author | QingFeng Hao <[email protected]> | 2017-09-29 12:41:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <[email protected]> | 2017-10-09 11:15:35 +0200 |
| commit | 9fb6c9b3fea1b1d1c6f14178373e8f7235f3b681 (patch) | |
| tree | 9b530f5034bad26c87adf9b17919d01438e20e18 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | b7c92f1a4e131e459bcf53a570e7265e5ce64455 (diff) | |
s390/sthyi: add cache to store hypervisor info
STHYI requires extensive locking in the higher hypervisors and is
very computational/memory expensive. Therefore we cache the retrieved
hypervisor info whose valid period is 1s with mutex to allow concurrent
access. rw semaphore can't benefit here due to cache line bounce.
Signed-off-by: QingFeng Hao <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions