Linux Filesystem IO benchmarking tool – Fileop

Fileop utility does file operation on the filesystem and gives the ops/sec for each operation. This tool will be useful to test your filesystem performance as well as storage performance. Or, if you are going to select a filesystem or storage that is going to host huge number of small files (like source codes), then fileop can be used for benchmarking.

First Install  iozone,

# wget http://iozone.org/src/current/iozone-3-353.src.rpm

# rpm -ivh iozone-3-353.src.rpm

Fileop can create files of different size ( with -s option ) and to different directory depth ( with -f option ).

# cd /opt/iozone/bin/

# fileop -f 10 -s 1k

Fileop:  Working in ., File size is 1024,  Output is in Ops/sec. (A=Avg, B=Best, W=Worst)

.           mkdir   chdir       rmdir   create    open    read       write   close        stat       access   chmod     readdir    link         unlink    delete   Total_files

A   10   3188   253715   54844     535    229636  133875   3034  142194  244295  343458  236873     87674    127181   167886   54859       1000

Fileop:  Working in ., File size is 4096,  Output is in Ops/sec. (A=Avg, B=Best, W=Worst)

mkdir:   Dirs =     65640 Total Time = 40.244653463 seconds

Avg mkdir(s)/sec     =      1631.02 ( 0.000613112 seconds/op)

Best mkdir(s)/sec    =     45590.26 ( 0.000021935 seconds/op)

Worst mkdir(s)/sec   =         0.23 ( 4.263848066 seconds/op)

chdir:   Dirs =     65640 Total Time =  0.262116671 seconds

Avg chdir(s)/sec     =    250422.84 ( 0.000003993 seconds/op)

Best chdir(s)/sec    =    349525.33 ( 0.000002861 seconds/op)

Worst chdir(s)/sec   =      1377.44 ( 0.000725985 seconds/op)

rmdir:   Dirs =     65640 Total Time =  7.757781744 seconds

Avg rmdir(s)/sec     =      8461.18 ( 0.000118187 seconds/op)

Best rmdir(s)/sec    =     72315.59 ( 0.000013828 seconds/op)

Worst rmdir(s)/sec   =         0.29 ( 3.484306812 seconds/op)

The fileop does perform mkdir, rmdir, create, write, close , stat, write, access, link, unlink, chmod, readdir and gives you performance stats in ops/sec and secs/op.