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[Bug malloc/16159] malloc_printerr() deadlock, when calling malloc_printerr() again
- From: "neleai at seznam dot cz" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 14 Nov 2013 14:32:12 +0000
- Subject: [Bug malloc/16159] malloc_printerr() deadlock, when calling malloc_printerr() again
- Auto-submitted: auto-generated
- References: <bug-16159-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16159
Ondrej Bilka <neleai at seznam dot cz> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |neleai at seznam dot cz
--- Comment #17 from Ondrej Bilka <neleai at seznam dot cz> ---
Joseph, do you have a benchmark to measure libgcc overhead?
I tried a following
cat "int main()
{
return 42;
}" > x.c
gcc x.c -O3 -o nogcc
gcc x.c -O3 -lgcc -o withgcc
time for I in `seq 1 10000`; do ./nogcc; done
time for I in `seq 1 10000`; do ./withgcc; done
And I cannot distinguish these from noise. When I linked with -lpthread there
was a noticable slowdown.
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