Bug #40634 table scan temporary table is 4x slower due to mmap instead instead of caching
Submitted: 11 Nov 2008 11:30 Modified: 23 Mar 2009 2:06
Reporter: Shane Bester (Platinum Quality Contributor) Email Updates:
Status: Closed Impact on me:
Category:MySQL Server: MyISAM storage engine Severity:S5 (Performance)
Version:5.1.29, 6.0.x OS:Any
Assigned to: Alexey Botchkov
Tags: mmap, read_buffer_size, regression, table scan, temporary table
Triage: Triaged: D2 (Serious)

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