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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 937] [dpdk-22.03] unit_tests_mempool/test_mempool_perf: timeout
on mempool_perf_autotest
Date: Thu, 17 Feb 2022 09:10:48 +0000
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https://bugs.dpdk.org/show_bug.cgi?id=3D937
Bug ID: 937
Summary: [dpdk-22.03] unit_tests_mempool/test_mempool_perf:
timeout on mempool_perf_autotest
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: other
Assignee: dev@dpdk.org
Reporter: linglix.chen@intel.com
Target Milestone: ---
dpdk-22.03-rc1: 2e07139b66a810883871ff20a5f31e4c222e5b40
Reproduce Step:
1.launch dpdk-test
x86_64-native-linuxapp-gcc/app/test/dpdk-test -l 1-111 -n 4
2. RTE>>mempool_perf_autotest
Expect results: mempool_perf_autotest timeout in 2000s.
Actual results: mempool_perf_autotest need run 1 or more hours.
Is this issue a regression: Y
Version the regression was introduced: Specify git id if known.
First bad commit:ed579e50c66db90485593c6c79f5366a57145f2a
Author: Morten Br=C3=B8rup <mb@smartsharesystems.com>
Date: Mon Jan 24 15:59:53 2022 +0100
mempool: test performance with constant n
"What gets measured gets done."
This patch adds mempool performance tests where the number of objects to
put and get is constant at compile time, which may significantly improve
the performance of these functions. [*]
Also, it is ensured that the array holding the object used for testing
is cache line aligned, for maximum performance.
And finally, the following entries are added to the list of tests:
- Number of kept objects: 512
- Number of objects to get and to put: The number of pointers fitting
into a cache line, i.e. 8 or 16
[*] Some example performance test (with cache) results:
get_bulk=3D4 put_bulk=3D4 keep=3D128 constant_n=3Dfalse rate_persec=3D28048=
0972
get_bulk=3D4 put_bulk=3D4 keep=3D128 constant_n=3Dtrue rate_persec=3D622159=
462
get_bulk=3D8 put_bulk=3D8 keep=3D128 constant_n=3Dfalse rate_persec=3D47796=
7155
get_bulk=3D8 put_bulk=3D8 keep=3D128 constant_n=3Dtrue rate_persec=3D917582=
643
get_bulk=3D32 put_bulk=3D32 keep=3D32 constant_n=3Dfalse rate_persec=3D8712=
48691
get_bulk=3D32 put_bulk=3D32 keep=3D32 constant_n=3Dtrue rate_persec=3D11340=
21836
Signed-off-by: Morten Br=C3=B8rup <mb@smartsharesystems.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
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