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* [Bug symtab/17001] New: Only keep last N recently referenced symtabs
@ 2014-05-30 20:11 dje at google dot com
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From: dje at google dot com @ 2014-05-30 20:11 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17001
Bug ID: 17001
Summary: Only keep last N recently referenced symtabs
Product: gdb
Version: HEAD
Status: NEW
Keywords: performance
Severity: enhancement
Priority: P2
Component: symtab
Assignee: unassigned at sourceware dot org
Reporter: dje at google dot com
Some of my benchmarks grow gdb's memory usage to 10s of GB, bringing my test
machine to a crawl. Some of them even bring it to the point where xmalloc
aborts due to out of memory (I have 32GB mem and 32GB swap on my test machine).
To avoid this gdb could change how symtabs are stored so that we could only
keep the last N recently referenced one. Or gdb could keep track of its memory
usage (maybe as a percent of total memory?) and starting discarding symtabs
when above some limit. Or both.
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2014-05-30 20:11 [Bug symtab/17001] New: Only keep last N recently referenced symtabs dje at google dot com
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