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# Measurements vmhost storage

```
zfs-2.3.1-1~bpo12+1
zfs-kmod-2.3.1-1~bpo12+1
  pool: storage
 state: ONLINE
status: Some supported and requested features are not enabled on the pool.
        The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
        the pool may no longer be accessible by software that does not support
        the features. See zpool-features(7) for details.
  scan: scrub repaired 0B in 1 days 17:34:53 with 0 errors on Mon Mar 10 17:58:55 2025
config:

        NAME                                   STATE     READ WRITE CKSUM
        storage                                ONLINE       0     0     0
          raidz1-0                             ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT6WGYM  ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT2SJZL  ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT6K3PP  ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT6XMPM  ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT2SYB0  ONLINE       0     0     0
            ata-ST20000NM007D-3DJ103_ZVT7F7KT  ONLINE       0     0     0
NAME                 PROPERTY               VALUE                    SOURCE
storage/gog-offline  type                   filesystem               -
storage/gog-offline  creation               Fr Feb  7 13:14 2025     -
storage/gog-offline  used                   316G                     -
storage/gog-offline  available              14.0T                    -
storage/gog-offline  referenced             316G                     -
storage/gog-offline  compressratio          1.00x                    -
storage/gog-offline  mounted                yes                      -
storage/gog-offline  quota                  none                     default
storage/gog-offline  reservation            none                     default
storage/gog-offline  recordsize             4K                       inherited from storage
storage/gog-offline  mountpoint             /storage/gog-offline     default
storage/gog-offline  sharenfs               off                      default
storage/gog-offline  checksum               on                       default
storage/gog-offline  compression            on                       default
storage/gog-offline  atime                  on                       default
storage/gog-offline  devices                on                       default
storage/gog-offline  exec                   on                       default
storage/gog-offline  setuid                 on                       default
storage/gog-offline  readonly               off                      default
storage/gog-offline  zoned                  off                      default
storage/gog-offline  snapdir                hidden                   default
storage/gog-offline  aclmode                discard                  default
storage/gog-offline  aclinherit             restricted               default
storage/gog-offline  createtxg              27126575                 -
storage/gog-offline  canmount               on                       default
storage/gog-offline  xattr                  on                       default
storage/gog-offline  copies                 1                        default
storage/gog-offline  version                5                        -
storage/gog-offline  utf8only               off                      -
storage/gog-offline  normalization          none                     -
storage/gog-offline  casesensitivity        sensitive                -
storage/gog-offline  vscan                  off                      default
storage/gog-offline  nbmand                 off                      default
storage/gog-offline  sharesmb               off                      default
storage/gog-offline  refquota               none                     default
storage/gog-offline  refreservation         none                     default
storage/gog-offline  guid                   3191482249681275415      -
storage/gog-offline  primarycache           all                      default
storage/gog-offline  secondarycache         all                      default
storage/gog-offline  usedbysnapshots        780K                     -
storage/gog-offline  usedbydataset          316G                     -
storage/gog-offline  usedbychildren         0B                       -
storage/gog-offline  usedbyrefreservation   0B                       -
storage/gog-offline  logbias                latency                  default
storage/gog-offline  objsetid               148271                   -
storage/gog-offline  dedup                  off                      default
storage/gog-offline  mlslabel               none                     default
storage/gog-offline  sync                   standard                 default
storage/gog-offline  dnodesize              legacy                   default
storage/gog-offline  refcompressratio       1.00x                    -
storage/gog-offline  written                65.0G                    -
storage/gog-offline  logicalused            292G                     -
storage/gog-offline  logicalreferenced      292G                     -
storage/gog-offline  volmode                default                  default
storage/gog-offline  filesystem_limit       none                     default
storage/gog-offline  snapshot_limit         none                     default
storage/gog-offline  filesystem_count       none                     default
storage/gog-offline  snapshot_count         none                     default
storage/gog-offline  snapdev                hidden                   default
storage/gog-offline  acltype                off                      default
storage/gog-offline  context                none                     default
storage/gog-offline  fscontext              none                     default
storage/gog-offline  defcontext             none                     default
storage/gog-offline  rootcontext            none                     default
storage/gog-offline  relatime               on                       default
storage/gog-offline  redundant_metadata     all                      default
storage/gog-offline  overlay                on                       default
storage/gog-offline  encryption             aes-256-gcm              -
storage/gog-offline  keylocation            none                     default
storage/gog-offline  keyformat              hex                      -
storage/gog-offline  pbkdf2iters            0                        default
storage/gog-offline  encryptionroot         storage                  -
storage/gog-offline  keystatus              available                -
storage/gog-offline  special_small_blocks   0                        default
storage/gog-offline  snapshots_changed      Fr Feb  7 13:26:25 2025  -
storage/gog-offline  prefetch               all                      default
storage/gog-offline  direct                 standard                 default
storage/gog-offline  longname               off                      default
```

## Direct

```
IOPS-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32
...
fio-3.28
Starting 4 processes
Jobs: 4 (f=4): [w(4)][100.0%][w=36.0MiB/s][w=9212 IOPS][eta 00m:00s]
IOPS-write: (groupid=0, jobs=4): err= 0: pid=1515224: Mon Mar 31 23:54:44 2025
  write: IOPS=4225, BW=16.5MiB/s (17.3MB/s)(990MiB/60001msec); 0 zone resets
    slat (usec): min=122, max=740375, avg=943.71, stdev=10962.59
    clat (usec): min=2, max=1035.9k, avg=29277.62, stdev=76886.07
     lat (usec): min=1263, max=1072.4k, avg=30221.54, stdev=78319.38
    clat percentiles (msec):
     |  1.00th=[    8],  5.00th=[    8], 10.00th=[    9], 20.00th=[    9],
     | 30.00th=[   10], 40.00th=[   10], 50.00th=[   11], 60.00th=[   12],
     | 70.00th=[   13], 80.00th=[   27], 90.00th=[   59], 95.00th=[   88],
     | 99.00th=[  558], 99.50th=[  667], 99.90th=[  827], 99.95th=[  911],
     | 99.99th=[  995]
   bw (  KiB/s): min=   72, max=54168, per=100.00%, avg=16977.71, stdev=3725.64, samples=474
   iops        : min=   18, max=13542, avg=4244.41, stdev=931.40, samples=474
  lat (usec)   : 4=0.01%, 10=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%, 10=45.18%, 20=31.26%, 50=11.34%
  lat (msec)   : 100=8.14%, 250=2.67%, 500=0.21%, 750=1.02%, 1000=0.17%
  lat (msec)   : 2000=0.01%
  cpu          : usr=0.32%, sys=6.34%, ctx=270565, majf=2, minf=59
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=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=0.1%, 64=0.0%, >=64=0.0%
     issued rwts: total=0,253519,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32

Run status group 0 (all jobs):
  WRITE: bw=16.5MiB/s (17.3MB/s), 16.5MiB/s-16.5MiB/s (17.3MB/s-17.3MB/s), io=990MiB (1038MB), run=60001-60001msec
IOPS-write-s: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32
...
fio-3.28
Starting 4 processes
Jobs: 4 (f=4): [w(4)][100.0%][w=58.2MiB/s][w=14.9k IOPS][eta 00m:00s]
IOPS-write-s: (groupid=0, jobs=4): err= 0: pid=1515912: Mon Mar 31 23:55:44 2025
  write: IOPS=11.8k, BW=46.2MiB/s (48.4MB/s)(2770MiB/60001msec); 0 zone resets
    slat (usec): min=62, max=333152, avg=336.07, stdev=1393.43
    clat (nsec): min=1273, max=268361k, avg=10422898.83, stdev=11578471.24
     lat (usec): min=774, max=414802, avg=10759.14, stdev=11874.60
    clat percentiles (msec):
     |  1.00th=[    6],  5.00th=[    7], 10.00th=[    7], 20.00th=[    8],
     | 30.00th=[    8], 40.00th=[    9], 50.00th=[    9], 60.00th=[    9],
     | 70.00th=[   10], 80.00th=[   11], 90.00th=[   13], 95.00th=[   18],
     | 99.00th=[   64], 99.50th=[  105], 99.90th=[  153], 99.95th=[  174],
     | 99.99th=[  255]
   bw (  KiB/s): min= 4832, max=64656, per=99.81%, avg=47190.05, stdev=3745.76, samples=476
   iops        : min= 1208, max=16164, avg=11797.51, stdev=936.44, samples=476
  lat (usec)   : 2=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%, 10=77.89%, 20=18.53%, 50=2.29%
  lat (msec)   : 100=0.70%, 250=0.56%, 500=0.02%
  cpu          : usr=0.70%, sys=12.39%, ctx=724689, majf=0, minf=62
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=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=0.1%, 64=0.0%, >=64=0.0%
     issued rwts: total=0,709176,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32

Run status group 0 (all jobs):
  WRITE: bw=46.2MiB/s (48.4MB/s), 46.2MiB/s-46.2MiB/s (48.4MB/s-48.4MB/s), io=2770MiB (2905MB), run=60001-60001msec
```