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November 2010

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42 discussions

[Maria-developers] gcc -Wframe-larger-than
by Sergei Golubchik 01 Nov '10

01 Nov '10

Hi, Just noticed that gcc has a warning option -Wframe-larger-than=LEN that makes gcc to warn about functions with stack frames larger than LEN. Considering a recent issue when we had a 130K structure on the stack (which did overflow the stack in some cases), it may be a good idea to enable this warning with a reasonably conservative threshold, say, 16K or 32K. Regards, Sergei

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[Maria-developers] WL#165 New (by Knielsen): Extend group commit to also handle non-transactional events
by worklog-noreply＠askmonty.org 01 Nov '10

01 Nov '10

----------------------------------------------------------------------- WORKLOG TASK -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- TASK...........: Extend group commit to also handle non-transactional events CREATION DATE..: Mon, 01 Nov 2010, 12:09 SUPERVISOR.....: IMPLEMENTOR....: COPIES TO......: CATEGORY.......: Client-RawIdeaBin TASK ID........: 165 (http://askmonty.org/worklog/?tid=165) VERSION........: Server-9.x STATUS.........: Un-Assigned PRIORITY.......: 60 WORKED HOURS...: 0 ESTIMATE.......: 0 (hours remain) ORIG. ESTIMATE.: 0 PROGRESS NOTES: DESCRIPTION: The MWL#116 implements group commit for the binary log. The work in MWL#116 only facilitates group commit for transactional commit events. Non-transactional events like DDL or updates to MyISAM tables are not improved. This is mainly an issue when running with sync_binlog=1 This worklog is for extending the optimisation to also do group commit for these non-transactional event writes. The basic way to implement this is described in the low-level design of MWL#116, section 2.3. ESTIMATED WORK TIME ESTIMATED COMPLETION DATE ----------------------------------------------------------------------- WorkLog (v4.0.0)

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