Messages in this thread | | | Subject | 2.5.63-mm1, results of tar test with various elevators and file systems. | From | Steven Cole <> | Date | 27 Feb 2003 16:31:11 -0700 |
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Greetings all,
I ran the following script on 2.5.63-mm1 with different elevator options and on several different journaling file systems.
#!/bin/sh for i in 1 2 3 4 5 do time rm -rf linux-2.5.63 time tar zxf linux-2.5.63.tar.gz time sync echo ' ' done
The following data is from the 5th run in each case.
It looks like reiserfs likes the cfq elevator while xfs does not for this particular test. Sorry, not enough time for a more thorough analysis.
Steven
--------------------------------------------------------------------- 2.5.63-mm1 elevator=as
reiserfs: rm -rf linux-2.5.63 0.04user 1.76system 0:01.86elapsed 96%CPU tar zxf linux-2.5.63.tar.gz 4.82user 5.55system 0:14.38elapsed 72%CPU sync 0.00user 0.01system 0:01.42elapsed 1%CPU
reiser4: rm -rf linux-2.5.63 0.14user 3.31system 0:06.55elapsed 52%CPU tar zxf linux-2.5.63.tar.gz 4.89user 8.16system 0:15.86elapsed 82%CPU sync 0.00user 0.36system 0:01.24elapsed 29%CPU
ext3: rm -rf linux-2.5.63 0.03user 0.56system 0:00.75elapsed 79%CPU tar zxf linux-2.5.63.tar.gz 4.77user 4.33system 0:18.36elapsed 49%CPU sync 0.00user 0.20system 0:12.80elapsed 1%CPU
xfs: rm -rf linux-2.5.63 0.07user 2.53system 0:07.14elapsed 36%CPU tar zxf linux-2.5.63.tar.gz 4.97user 6.15system 0:35.64elapsed 31%CPU sync 0.00user 0.02system 0:03.39elapsed 0%CPU
--------------------------------------------------------------------- 2.5.63-mm1 elevator=cfq
reiserfs: rm -rf linux-2.5.63 0.04user 1.75system 0:01.87elapsed 96%CPU tar zxf linux-2.5.63.tar.gz 4.85user 5.55system 0:12.77elapsed 81%CPU sync 0.00user 0.17system 0:02.53elapsed 6%CPU
reiser4: rm -rf linux-2.5.63 0.15user 3.25system 0:06.48elapsed 52%CPU tar zxf linux-2.5.63.tar.gz 4.92user 8.27system 0:14.27elapsed 92%CPU sync 0.00user 0.37system 0:01.21elapsed 30%CPU
ext3: rm -rf linux-2.5.63 0.02user 0.56system 0:00.73elapsed 80%CPU tar zxf linux-2.5.63.tar.gz 4.71user 4.25system 0:19.80elapsed 45%CPU sync 0.00user 0.16system 0:15.78elapsed 1%CPU
xfs: rm -rf linux-2.5.63 0.07user 2.56system 0:07.33elapsed 35%CPU tar zxf linux-2.5.63.tar.gz 5.06user 6.77system 0:44.77elapsed 26%CPU sync 0.00user 0.12system 0:03.72elapsed 3%CPU
--------------------------------------------------------------------- 2.5.63-mm1 elevator=deadline
reiserfs: rm -rf linux-2.5.63 0.04user 1.77system 0:01.86elapsed 97%CPU tar zxf linux-2.5.63.tar.gz 4.97user 5.79system 0:13.18elapsed 81%CPU sync 0.00user 0.09system 0:02.29elapsed 4%CPU
reiser4: rm -rf linux-2.5.63 0.15user 3.32system 0:06.70elapsed 51%CPU tar zxf linux-2.5.63.tar.gz 4.83user 8.09system 0:15.54elapsed 83%CPU sync 0.00user 0.36system 0:01.18elapsed 30%CPU
ext3: rm -rf linux-2.5.63 0.03user 0.59system 0:00.77elapsed 80%CPU tar zxf linux-2.5.63.tar.gz 4.77user 4.61system 0:19.84elapsed 47%CPU sync 0.00user 0.19system 0:14.55elapsed 1%CPU
xfs: rm -rf linux-2.5.63 0.06user 2.46system 0:07.36elapsed 34%CPU tar zxf linux-2.5.63.tar.gz 5.05user 6.50system 0:36.68elapsed 31%CPU sync 0.00user 0.01system 0:03.23elapsed 0%CPU
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