maria-developers team mailing list archive
Mailing list archive
Re: MDEV-4956 - Reduce usage of LOCK_open: TABLE_SHARE::tdc.used_tables
LOCK_plugin issue was caused by semisync plugins, which were disabled in
subsequent benchmarks. When they were enabled tps was even lower: ~6.5k.
On Wed, Sep 11, 2013 at 09:28:54AM +0200, Patryk Pomykalski wrote:
> Dnia 11-09-2013 o 09:15:47 Sergey Vojtovich <svoj@xxxxxxxxxxx> napisał(a):
> >Hi Sergei,
> >I just realized that I didn't share benchmark results (read-only
> >OLTP that XL did):
> >5.6 tps: ~18k
> >10.0 tps: ~9k
> >10.0 + MDEV-4956 tps: ~11k
> >I estimate tc_acquire_table and tc_release_table are eating up ~6k tps
> >(2k per list).
> Wasn't this difference caused by LOCK_plugin?
> Patryk Pomykalski