Gp3

볼륨 두개를 만들었다 mount /dev/nvme1n1p1 /mnt/gp3 mount /dev/nvme2n1p1 /mnt/gp2 yum install gcc zlib-devel wget https://codeload.github.com/axboe/fio/tar.gz/fio-3.24 tar zfxv fio-3.24 cd fio-fio-3.24/ ./configure --prefix=/home/fio make; make install 필요한 라이브러리 gcc, zlib-devel 설치후 컴파일. fio 는 나도 처음써보는 툴이다 fio --directory=/mnt/gp3 --name fio_test_file --direct=1 --rw=randread \\ --bs=4K --size=1G --numjobs=7 --time_based --runtime=180 --group_reporting \\ --norandommap 3분동안 하나의 스레드가 7개의 1G 파일을 4K 단위로 Direct I/O 모드의 Random Read 로 읽는 테스트이다. Jobs: 7 (f=7): [r(7)][100.0%][r=11.7MiB/s][r=3001 IOPS][eta 00m:00s] fio_test_file: (groupid=0, jobs=7): err= 0: pid=2450: Wed Dec 2 06:59:19 2020 read: IOPS=3016, BW=11.8MiB/s (12.4MB/s)(2121MiB/180004msec) clat (usec): min=188, max=296635, avg=2319.05, stdev=1213.65 lat (usec): min=188, max=296635, avg=2319.21, stdev=1213.65 clat percentiles (usec): | 1.00th=[ 408], 5.00th=[ 922], 10.00th=[ 1287], 20.00th=[ 1598], | 30.00th=[ 1762], 40.00th=[ 1926], 50.00th=[ 2057], 60.00th=[ 2212], | 70.00th=[ 2474], 80.00th=[ 2933], 90.00th=[ 3818], 95.00th=[ 4621], | 99.00th=[ 6194], 99.50th=[ 6587], 99.90th=[ 7767], 99.95th=[ 8455], | 99.99th=[10028] bw ( KiB/s): min= 9848, max=32328, per=100.00%, avg=12069.08, stdev=167.76, samples=2513 iops : min= 2462, max= 8082, avg=3017.27, stdev=41.94, samples=2513 lat (usec) : 250=0.05%, 500=2.12%, 750=1.59%, 1000=1.99% lat (msec) : 2=40.61%, 4=45.04%, 10=8.59%, 20=0.01%, 50=0.01% lat (msec) : 250=0.01%, 500=0.01% cpu : usr=0.12%, sys=0.29%, ctx=543082, majf=0, minf=93 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 rwts: total=542985,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=1 Run status group 0 (all jobs): READ: bw=11.8MiB/s (12.4MB/s), 11.8MiB/s-11.8MiB/s (12.4MB/s-12.4MB/s), io=2121MiB (2224MB), run=180004-180004msec Disk stats (read/write): nvme1n1: ios=542478/13, merge=0/3, ticks=1253070/0, in_queue=1078350, util=99.97% 정확히 3000iops 가 나온다. ...