Details
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Bug
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Resolution: Fixed
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Minor
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Lustre 2.13.0
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None
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3
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9223372036854775807
Description
'git bisect' pointed out a performance regression on directory creation and commit "b7cd65a LU-12988 ldiskfs: mballoc to prefetch groups" caused regression.
mpirun -np 640 mdtest -D -C -r -u -n 1000 -vv -p 10 -i 3 -d /scratch/mdt0
master 52b5f4a LU-10401 tests: fix error from 'tr -d=' SUMMARY rate: (of 3 iterations) Operation Max Min Mean Std Dev --------- --- --- ---- ------- Directory creation : 44270.444 42144.617 43138.707 873.040 Directory stat : 0.000 0.000 0.000 0.000 Directory removal : 46058.435 44429.196 45452.138 726.962 Tree creation : 39.058 30.573 35.586 3.631 Tree removal : 32.583 31.615 32.014 0.413 V-1: Entering PrintTimestamp...
b7cd65a LU-12988 ldiskfs: mballoc to prefetch groups SUMMARY rate: (of 3 iterations) Operation Max Min Mean Std Dev --------- --- --- ---- ------- Directory creation : 44626.926 43321.707 43810.517 580.641 Directory stat : 0.000 0.000 0.000 0.000 Directory removal : 46902.932 45311.241 46091.593 649.716 Tree creation : 39.966 25.251 34.092 6.363 Tree removal : 32.608 25.252 30.093 3.424 V-1: Entering PrintTimestamp...
59a3d72 LU-12043 llite: move tunable params to sysfs_memparse() SUMMARY rate: (of 3 iterations) Operation Max Min Mean Std Dev --------- --- --- ---- ------- Directory creation : 76243.849 62728.925 69264.981 5525.345 Directory stat : 0.000 0.000 0.000 0.000 Directory removal : 47895.918 47533.099 47709.202 147.805 Tree creation : 43.638 38.047 41.193 2.336 Tree removal : 33.540 27.030 31.193 2.951 V-1: Entering PrintTimestamp...
