Vladislav Vaintroub wrote: > > Historical remark on this, the patch for MDEV-3945, > This patch was inspired by the said Yoshi's blog entry - he > names holding lock during THD destructor (including freeing memory) as one > of contention sources, and this was easy to fix. This patch made into 5.5.29 > and I think could make big difference to prior versions (70%, or something > in that range, I do not recall exact number I measured)
I do have numbers :) I've just rerun the same test with MariaDB-5.5.25 (what Yoshi used) and indeed the 5.5.29 numbers are much better. XL
<<inline: tps_all_none_tcmalloc.png>>
<<inline: tps_all_table_tcmalloc.png>>
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