{"id":112970,"date":"2020-06-05T02:00:16","date_gmt":"2020-06-04T18:00:16","guid":{"rendered":"http:\/\/4563.org\/?p=112970"},"modified":"2020-06-05T02:00:16","modified_gmt":"2020-06-04T18:00:16","slug":"%e4%b8%bazfs-zpool%e6%b7%bb%e5%8a%a0%e5%9b%ba%e6%80%81%e7%a1%ac%e7%9b%98%e7%bc%93%e5%ad%98-zil%e5%86%99%e7%bc%93%e5%ad%98arc%e5%86%99%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=112970","title":{"rendered":"\u4e3aZFS zpool\u6dfb\u52a0\u56fa\u6001\u786c\u76d8\u7f13\u5b58 ZIL\u5199\u7f13\u5b58|ARC\u5199\u7f13\u5b58"},"content":{"rendered":"\n<p>  \t\t\t\t\t<strong>StudyOverseas<\/strong>  \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n<h3>\u4e3aZFS zpool\u6dfb\u52a0\u56fa\u6001\u786c\u76d8\u7f13\u5b58 ZIL\u5199\u7f13\u5b58|ARC\u5199\u7f13\u5b58<\/h3>\n<p>  \t\t\u539f\u6587\uff1ahttps:\/\/www.liujason.com\/article\/800.html<\/p>\n<p>  \u65b0\u5efaloop\u865a\u62df\u76d8<br \/>  \u672c\u5730\u78c1\u76d8\u5c31\u662fNVME\u7684\uff0c\u5982\u679c\u53ef\u4ee5\u91cd\u65b0\u5206\u533a\u90a3\u662f\u6700\u597d\uff0c\u4e0d\u8fc7\u6211\u8fd9\u91cc\u5acc\u9ebb\u70e6\u5c31\u76f4\u63a5\u7528loop\u865a\u62df\u76d8\u4e86\uff0c\u6027\u80fd\u4f1a\u5dee\u4e00\u70b9\u70b9\u4f46\u662f\u4e0d\u4f1a\u592a\u591a\uff08\u6bd5\u7adf\u672c\u5730\u5df2\u7ecf\u683c\u5f0f\u5316\u4e3aExt4\u4e86\uff09\u3002<\/p>\n<p>  \u521b\u5efa\u955c\u50cf\u6587\u4ef6<br \/>  \u5927\u5bb6\u90fd\u559c\u6b22\u7528dd\uff0c\u4e0d\u8fc7fallocate\u6211\u89c9\u5f97\u66f4\u8212\u670d\u3002\u8fd9\u91cc\u65b0\u5efa\u4e24\u4e2a\u955c\u50cf\u6587\u4ef6\uff0c\u5206\u522b\u662f\u8bfb\u7f13\u5b58\u548c\u5199\u7f13\u5b58\u7684\uff1a<\/p>\n<p>  root@HPC-HEL1-S101 \/home # fallocate -l 300G zfs-log-cache.img<br \/>  root@HPC-HEL1-S101 \/home # fallocate -l 300G zfs-read-cache.img<br \/>  \u8981\u6ce8\u610f\u7684\u662f\uff0c\u8bfb\u7f13\u5b58\u635f\u574f\u540e\u6570\u636e\u4e0d\u4f1a\u4e22\u5931\uff0c\u5199\u7f13\u5b58\u635f\u574f\u7684\u8bdd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\uff0c\u614e\u7528\uff01<\/p>\n<p>  \u6302\u8f7d\u4e3aloop<br \/>  \u8fd9\u4e2a\u6ca1\u5565\u597d\u8bf4\u7684\uff0c\u7528losetup\u5373\u53ef\uff1a<\/p>\n<p>  root@HPC-HEL1-S101 \/home # losetup -fP zfs-log-cache.img<br \/>  root@HPC-HEL1-S101 \/home # losetup -fP zfs-read-cache.img<br \/>  \u68c0\u67e5\u6302\u8f7d\u60c5\u51b5<br \/>  root@HPC-HEL1-S101 \/home # losetup -a<br \/>  \/dev\/loop1: :37691140 (\/home\/zfs-log-cache.img)<br \/>  \/dev\/loop2: :37691139 (\/home\/zfs-read-cache.img)<br \/>  \/dev\/loop0: :52272397 (\/var\/lib\/vz\/images\/100\/vm-100-disk-0.raw)<br \/>  root@HPC-HEL1-S101 \/home # lsblk<br \/>  NAME&nbsp; &nbsp;&nbsp; &nbsp;MAJ:MIN RM&nbsp; &nbsp;SIZE RO TYPE MOUNTPOINT<br \/>  loop0&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;7:0&nbsp; &nbsp; 0&nbsp; &nbsp; 64G0 loop <br \/>  loop1&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;7:1&nbsp; &nbsp; 0&nbsp; &nbsp;300G0 loop <br \/>  loop2&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;7:2&nbsp; &nbsp; 0&nbsp; &nbsp;300G0 loop<br \/>  \u6dfb\u52a0\u5230zpool<br \/>  \u67e5\u770bzpool<br \/>  \u9996\u5148\u68c0\u67e5\u4e00\u4e0bzpool\u7684\u60c5\u51b5\uff1a<\/p>\n<p>  root@HPC-HEL1-S101 \/home # zpool status<br \/>  pool: Hel1-S101<br \/>   state: ONLINE<br \/>  scan: none requested<br \/>  config:<\/p>\n<p>  &nbsp; &nbsp;&nbsp; &nbsp;NAME&nbsp; &nbsp;&nbsp; &nbsp;STATE&nbsp; &nbsp;READ WRITE CKSUM<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;Hel1-S101&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; raidz1-0ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sda&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdb&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdc&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdd&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sde&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdf&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdg&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdh&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdi&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdj&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<\/p>\n<p>  errors: No known data errors<br \/>  \u6dfb\u52a0\u7f13\u5b58<br \/>  \u5206\u522b\u6dfb\u52a0\u8bfb\u7f13\u5b58\u548c\u5199\u7f13\u5b58\uff1a<\/p>\n<p>  root@HPC-HEL1-S101 \/home # zpool add Hel1-S101 log \/dev\/loop1<br \/>  root@HPC-HEL1-S101 \/home # zpool add Hel1-S101 cache \/dev\/loop2<br \/>  \u68c0\u67e5\u7f13\u5b58\u60c5\u51b5<br \/>  root@HPC-HEL1-S101 \/home # zpool status<br \/>  pool: Hel1-S101<br \/>   state: ONLINE<br \/>  scan: none requested<br \/>  config:<\/p>\n<p>  &nbsp; &nbsp;&nbsp; &nbsp;NAME&nbsp; &nbsp;&nbsp; &nbsp;STATE&nbsp; &nbsp;READ WRITE CKSUM<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;Hel1-S101&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; raidz1-0ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sda&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdb&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdc&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdd&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sde&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdf&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdg&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdh&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdi&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;sdj&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;logs<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; loop1&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;cache<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; loop2&nbsp; &nbsp;ONLINE&nbsp; &nbsp;&nbsp; &nbsp; 0&nbsp; &nbsp;0&nbsp; &nbsp;0<\/p>\n<p>  errors: No known data errors<br \/>  \u7f13\u5b58\u6548\u679c<br \/>  \u7528zpool iostat -v\u53ef\u4ee5\u660e\u663e\u770b\u5230SSD\u7684\u8bfb\u5199\u7f13\u5b58\u5df2\u7ecf\u751f\u6548\u4e86\uff0c\u540e\u7eed\u70ed\u6587\u4ef6\u5c06\u76f4\u63a5\u4ececache\u4e2d\u8bfb\u53d6\uff0c\u964d\u4f4e\u673a\u68b0\u76d8\u7684\u8d1f\u8f7d\u3002<\/p>\n<p>  root@HPC-HEL1-S101 ~ # zpool iostat -v<br \/>  &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;capacity&nbsp; &nbsp;operations&nbsp; &nbsp;bandwidth <br \/>  pool&nbsp; &nbsp;&nbsp; &nbsp;alloc&nbsp; &nbsp;free&nbsp; &nbsp;readwrite&nbsp; &nbsp;readwrite<br \/>  &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>  Hel1-S101&nbsp; &nbsp; 132G90.8T&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;893.30K1.91M<br \/>  raidz1&nbsp; &nbsp;132G90.8T&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;813.30K&nbsp; &nbsp;991K<br \/>  &nbsp; &nbsp; sda&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 33399.5K<br \/>  &nbsp; &nbsp; sdb&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;7&nbsp; &nbsp; 31598.6K<br \/>  &nbsp; &nbsp; sdc&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 34999.6K<br \/>  &nbsp; &nbsp; sdd&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;7&nbsp; &nbsp; 33498.7K<br \/>  &nbsp; &nbsp; sde&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 36299.7K<br \/>  &nbsp; &nbsp; sdf&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 32698.7K<br \/>  &nbsp; &nbsp; sdg&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 35499.6K<br \/>  &nbsp; &nbsp; sdh&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 32898.6K<br \/>  &nbsp; &nbsp; sdi&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 34999.6K<br \/>  &nbsp; &nbsp; sdj&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;8&nbsp; &nbsp; 32298.5K<br \/>  logs&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;<br \/>  loop1&nbsp; &nbsp;11.8M&nbsp; &nbsp;298G&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;10&nbsp; &nbsp;&nbsp; &nbsp;81.21M<br \/>  cache&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;&nbsp; &nbsp;&nbsp; &nbsp;&#8211;<br \/>  loop2&nbsp; &nbsp;&nbsp; &nbsp;224M&nbsp; &nbsp;300G&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;&nbsp; &nbsp;0&nbsp; &nbsp;4981.3K<br \/>  &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>  fio\u6d4b\u8bd5-16k\u5c0f\u6587\u4ef6\u968f\u673a<br \/>  \u6d4b\u8bd5\u4ee3\u7801\uff1afio -filename=\/Hel1-S101\/fiotest.bin -direct=1 -iodepth 1 -thread -rw=randwrite -ioengine=psync -bs=16k -size=10G -numjobs=30 -runtime=10 -group_reporting -name=zfs-cache-test<\/p>\n<p>  Jobs: 30 (f=30): <br \/>  zfs-cache-test: (groupid=0, jobs=30): err= 0: pid=21034: Thu Jun4 18:49:56 2020<br \/>  write: IOPS=11.1k, BW=173MiB\/s (182MB\/s)(1734MiB\/10002msec); 0 zone resets<br \/>  &nbsp; &nbsp; clat (usec): min=5, max=88218, avg=2700.66, stdev=2176.33<br \/>  &nbsp; &nbsp;lat (usec): min=6, max=88218, avg=2700.98, stdev=2176.36<br \/>  &nbsp; &nbsp; clat percentiles (usec):<br \/>  &nbsp; &nbsp;|1.00th=[&nbsp; &nbsp;10],5.00th=[&nbsp; &nbsp;45], 10.00th=[&nbsp; &nbsp;52], 20.00th=,<br \/>  &nbsp; &nbsp;| 30.00th=[ 1696], 40.00th=[ 2311], 50.00th=[ 2737], 60.00th=[ 3130],<br \/>  &nbsp; &nbsp;| 70.00th=[ 3556], 80.00th=[ 3982], 90.00th=[ 4883], 95.00th=[ 6063],<br \/>  &nbsp; &nbsp;| 99.00th=[ 7373], 99.50th=[ 8291], 99.90th=, 99.95th=,<br \/>  &nbsp; &nbsp;| 99.99th=<br \/>  &nbsp; &nbsp;bw (KiB\/s): min= 3552, max=40271, per=3.33%, avg=5913.96, stdev=4550.90, samples=592<br \/>  &nbsp; &nbsp;iops&nbsp; &nbsp;&nbsp; &nbsp;: min=222, max= 2516, avg=369.60, stdev=284.39, samples=592<br \/>  lat (usec)&nbsp; &nbsp;: 10=1.10%, 20=0.79%, 50=7.09%, 100=5.98%, 250=2.23%<br \/>  lat (usec)&nbsp; &nbsp;: 500=0.92%, 750=1.26%, 1000=3.18%<br \/>  lat (msec)&nbsp; &nbsp;: 2=11.54%, 4=46.17%, 10=19.38%, 20=0.29%, 50=0.07%<br \/>  lat (msec)&nbsp; &nbsp;: 100=0.01%<br \/>  cpu&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; : usr=0.16%, sys=2.21%, ctx=205649, majf=0, minf=0<br \/>  IO depths&nbsp; &nbsp; : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;submit&nbsp; &nbsp; : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;issued rwts: total=0,110988,0,0 short=0,0,0,0 dropped=0,0,0,0<br \/>  &nbsp; &nbsp;latency&nbsp; &nbsp;: target=0, window=0, percentile=100.00%, depth=1<\/p>\n<p>  Run status group 0 (all jobs):<br \/>  WRITE: bw=173MiB\/s (182MB\/s), 173MiB\/s-173MiB\/s (182MB\/s-182MB\/s), io=1734MiB (1818MB), run=10002-10002msec<br \/>  fio\u6d4b\u8bd5-\u5927\u6587\u4ef61G\u8fde\u7eed<br \/>  \u6d4b\u8bd5\u4ee3\u7801\uff1afio -filename=\/Hel1-S101\/fiotest.bin -direct=1 -iodepth 1 -thread -rw=randwrite -ioengine=psync -bs=1G -size=20G -numjobs=30 -runtime=10 -group_reporting -name=zfs-cache-test<\/p>\n<p>  zfs-cache-test: (groupid=0, jobs=30): err= 0: pid=6117: Thu Jun4 18:52:20 2020<br \/>  write: IOPS=0, BW=785MiB\/s (823MB\/s)(30.0GiB\/39131msec); 0 zone resets<br \/>  &nbsp; &nbsp; clat (msec): min=14642, max=38803, avg=24851.81, stdev=8958.50<br \/>  &nbsp; &nbsp;lat (msec): min=14770, max=39124, avg=25138.77, stdev=8987.50<br \/>  &nbsp; &nbsp; clat percentiles (msec):<br \/>  &nbsp; &nbsp;|1.00th=,5.00th=, 10.00th=, 20.00th=,<br \/>  &nbsp; &nbsp;| 30.00th=, 40.00th=, 50.00th=, 60.00th=,<br \/>  &nbsp; &nbsp;| 70.00th=, 80.00th=, 90.00th=, 95.00th=,<br \/>  &nbsp; &nbsp;| 99.00th=, 99.50th=, 99.90th=, 99.95th=,<br \/>  &nbsp; &nbsp;| 99.99th=<br \/>  cpu&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; : usr=0.54%, sys=1.83%, ctx=264186, majf=0, minf=0<br \/>  IO depths&nbsp; &nbsp; : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;submit&nbsp; &nbsp; : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, &gt;=64=0.0%<br \/>  &nbsp; &nbsp;issued rwts: total=0,30,0,0 short=0,0,0,0 dropped=0,0,0,0<br \/>  &nbsp; &nbsp;latency&nbsp; &nbsp;: target=0, window=0, percentile=100.00%, depth=1<\/p>\n<p>  Run status group 0 (all jobs):<br \/>  WRITE: bw=785MiB\/s (823MB\/s), 785MiB\/s-785MiB\/s (823MB\/s-823MB\/s), io=30.0GiB (32.2GB), run=39131-39131msec\t\t\t\t<\/p>\n<p>  \t\t\t\t\t<strong>h20<\/strong>  \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n<h3><\/h3>\n<p>  \t\t\u62ffSSD\u7684\u751f\u547d\u6362HDD\u7684\u901f\u5ea6\uff1f\t\t\t  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>StudyOverseas \u5927\u4f6c\u6709&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/112970"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=112970"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/112970\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=112970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=112970"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=112970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}