[Koha-bugs] [Bug 16044] Define a L1 cache for all objects set in cache

bugzilla-daemon at bugs.koha-community.org bugzilla-daemon at bugs.koha-community.org
Thu Mar 17 10:58:17 CET 2016


https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16044

--- Comment #17 from Jacek Ablewicz <abl at biblos.pk.edu.pl> ---
I'm also trying to test this, but with kinda weird results so far..

Searching (medium-size dataset, 120k biblios, 300k items, 10-200-20000 hits,
XSLT processing enabled, testing with initial patch set - without the last 2
followups):

1) CGI + memcache - no measurable differences between patched/unpatched
2) CGI + Cache::Memory - it's ca 2x slower for the searches with 50+ hits

With the 1st followup (attachment #49239), both CGI + memcache and CGI +
Cache::Memory are 2x slower :( But why is that? Supposedly, it should be
neutral re/ search speed (or even a bit faster on average).

2nd followup (#49240) just disables "safety measures" in the 2 most
speed-sensitive places - an instant, enormous performance gain! Not very
"step-by-step", though. Would it be safe enough/reasonably safe thing to do at
this stage - I have no idea.

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