apport information
** Tags added: apport-collected jammy
** Description changed:
The performance of the rand() function on Ubuntu 22.04 has decreased by 62%
compared to Ubuntu 21.04.
Measured on Ubuntu 21.04: 28.070s
Measured on Ubuntu 22.04: 45.493s
Ubuntu 22.04:
root@ubuntu:
Erf, that's really an annoying bug, we should really fix it.
Meanwhile, please run apport-collect 2101201 -p libc6, that ought to
work.
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Title:
be0cfd848d9ad7378800d6302bc11467cf2b514f fix this issue.
commit be0cfd848d9ad7378800d6302bc11467cf2b514f
Author: Wilco Dijkstra
Date: Mon Mar 18 15:18:20 2024 +
stdlib: Add single-threaded fast path to rand()
Improve performance of rand() and __random() by adding a single-thre
Hi, I can't reproduce the issue with Focal (20.04) and Jammy (22.04)
containers. Using your C code, I consistently get similar performance
(around 9.5 seconds on my system). In the Jammy container I tried both
the Focal binary and a freshly compiled binary, to be sure, and the perf
was the same.
C
ubuntu@haixiao:~$ sudo apport-collect 2101201
Package glibc not installed and no hook available, ignoring
*** Updating problem report
No additional information collected.
Press any key to continue...
No pending crash reports. Try --help for more information.
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Could you please run
apport-collect 2101201
on the affected system to gather some data to help diagnose the issue?
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https://bugs.launchpad.net/bugs/2101201
Title:
The performance of t
run 20.04 docker on ubuntu 22.04:
wrlbuild@0ebf1418845d:/mnt/meta-test/recipes-example/example/files$ time
./mallocrandfree
Running malloc-rand-free test - creating 1,000 byte buffers 2,000,000 times.
real0m28.753s
user0m28.750s
sys 0m0.002s
wrlbuild@0ebf1418845d:/mnt/meta-test/reci
** Package changed: ubuntu => glibc (Ubuntu)
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https://bugs.launchpad.net/bugs/2101201
Title:
The performance of the rand() function degradation
To manage notifications about this bug g
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
