迷彩 潜伏 隐蔽 伪装
分类: 云计算
2015-06-03 18:09:26
原文地址:网络监测:fio安装与使用 作者:hiyachen
FIO是测试IOPS的非常好的工具,用来对硬件进行压力测试和验
证,支持13种不同的I/O引擎,包括:sync,mmap, libaio, posixaio, SG v3, splice, null,
network, syslet, guasi, solarisaio 等等。 fio 官网地址: 一,FIO安装
apt-get install fio (debian8)
二,FIO用法:随机读: fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=randread -ioengine=psync -bs=16k -size=200G -numjobs=10 -runtime=1000 -group_reporting -name=mytest 说明: filename=/dev/sdb1 测试文件名称,通常选择需要测试的盘的data目录。 direct=1 测试过程绕过机器自带的buffer。使测试结果更真实。 rw=randwrite 测试随机写的I/O rw=randrw 测试随机写和读的I/O bs=16k 单次io的块文件大小为16k bsrange=512-2048 同上,提定数据块的大小范围 size=5g 本次的测试文件大小为5g,以每次4k的io进行测试。 numjobs=30 本次的测试线程为30. runtime=1000 测试时间为1000秒,如果不写则一直将5g文件分4k每次写完为止。 ioengine=psync io引擎使用pync方式 rwmixwrite=30 在混合读写的模式下,写占30% group_reporting 关于显示结果的,汇总每个进程的信息。 此外 lockmem=1g 只使用1g内存进行测试。 zero_buffers 用0初始化系统buffer。 nrfiles=8 每个进程生成文件的数量。 顺序读: fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=read -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=1000 -group_reporting -name=mytest 随机写: fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=randwrite -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=1000 -group_reporting -name=mytest 顺序写: fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=write -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=1000 -group_reporting -name=mytest 混合随机读写: fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=100 -group_reporting -name=mytest -ioscheduler=noop 三,实际测试范例(主要查看红色字体部分的iops): [root@localhost ~]# fio -filename=/dev/sdb1 -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=100 -group_reporting -name=mytest1 mytest1: (g=0): rw=randrw, bs=16K-16K/16K-16K, ioengine=psync, iodepth=1 … mytest1: (g=0): rw=randrw, bs=16K-16K/16K-16K, ioengine=psync, iodepth=1 fio 2.0.7 Starting 30 threads Jobs: 1 (f=1): [________________m_____________] [3.5% done] [6935K/3116K /s] [423 /190 iops] [eta 48m:20s] s] mytest1: (groupid=0, jobs=30): err= 0: pid=23802 read : io=1853.4MB, bw=18967KB/s, iops=1185 , runt=100058msec clat (usec): min=60 , max=871116 , avg=25227.91, stdev=31653.46 lat (usec): min=60 , max=871117 , avg=25228.08, stdev=31653.46 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 26], 80.00th=[ 37], 90.00th=[ 57], 95.00th=[ 79], | 99.00th=[ 151], 99.50th=[ 202], 99.90th=[ 338], 99.95th=[ 383], | 99.99th=[ 523] bw (KB/s) : min= 26, max= 1944, per=3.36%, avg=636.84, stdev=189.15 write: io=803600KB, bw=8031.4KB/s, iops=501 , runt=100058msec clat (usec): min=52 , max=9302 , avg=146.25, stdev=299.17 lat (usec): min=52 , max=9303 , avg=147.19, stdev=299.17 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 65], 10.00th=[ 68], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 87], 50.00th=[ 89], 60.00th=[ 90], | 70.00th=[ 92], 80.00th=[ 97], 90.00th=[ 120], 95.00th=[ 370], | 99.00th=[ 1688], 99.50th=[ 2128], 99.90th=[ 3088], 99.95th=[ 3696], | 99.99th=[ 5216] bw (KB/s) : min= 20, max= 1117, per=3.37%, avg=270.27, stdev=133.27 lat (usec) : 100=24.32%, 250=3.83%, 500=0.33%, 750=0.28%, 1000=0.27% lat (msec) : 2=0.64%, 4=3.08%, 10=20.67%, 20=19.90%, 50=17.91% lat (msec) : 100=6.87%, 250=1.70%, 500=0.19%, 750=0.01%, 1000=0.01% cpu : usr=1.70%, sys=2.41%, ctx=5237835, majf=0, minf=6344162 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued : total=r=118612/w=50225/d=0, short=r=0/w=0/d=0 Run status group 0 (all jobs): READ: io=1853.4MB, aggrb=18966KB/s, minb=18966KB/s, maxb=18966KB/s, mint=100058msec, maxt=100058msec WRITE: io=803600KB, aggrb=8031KB/s, minb=8031KB/s, maxb=8031KB/s, mint=100058msec, maxt=100058msec Disk stats (read/write): sdb: ios=118610/50224, merge=0/0, ticks=2991317/6860, in_queue=2998169, util=99.77% |