that’s odd for an all flash pool.
I mean I have disabled sync, but I have normal disks and you NVME
Specifications:
E5-2660 v3
256GB RAM
LSI SAS3008
10x TOSHIBA_MG07ACA12TE and TOSHIBA_MG08ACA16TE
Rotation Rate: 7200 RPM
Metadata
Raid10 4x 1TB ADATA SX8200PNP
Raidz 10 HDDs
READ: bw=471MiB/s (494MB/s), 471MiB/s-471MiB/s (494MB/s-494MB/s), io=3070MiB (3219MB), run=6523-6523msec
WRITE: bw=157MiB/s (165MB/s), 157MiB/s-157MiB/s (165MB/s-165MB/s), io=1026MiB (1076MB), run=6523-6523msec
root@truenas[/mnt/store01]# zfs get all store01/bench
NAME PROPERTY VALUE SOURCE
store01/bench type filesystem -
store01/bench creation Thu Jul 27 3:43 2023 -
store01/bench used 40.7G -
store01/bench available 44.3T -
store01/bench referenced 40.7G -
store01/bench compressratio 1.00x -
store01/bench mounted yes -
store01/bench quota none default
store01/bench reservation none default
store01/bench recordsize 512K inherited from store01
store01/bench mountpoint /mnt/store01/bench default
store01/bench sharenfs off default
store01/bench checksum on default
store01/bench compression lz4 inherited from store01
store01/bench atime off inherited from store01
store01/bench devices on default
store01/bench exec on inherited from store01
store01/bench setuid on default
store01/bench readonly off inherited from store01
store01/bench zoned off default
store01/bench snapdir hidden inherited from store01
store01/bench aclmode discard inherited from store01
store01/bench aclinherit discard local
store01/bench createtxg 24423773 -
store01/bench canmount on default
store01/bench xattr sa local
store01/bench copies 1 local
store01/bench version 5 -
store01/bench utf8only off -
store01/bench normalization none -
store01/bench casesensitivity sensitive -
store01/bench vscan off default
store01/bench nbmand off default
store01/bench sharesmb off default
store01/bench refquota none default
store01/bench refreservation none default
store01/bench guid 6499519791997436066 -
store01/bench primarycache all default
store01/bench secondarycache all default
store01/bench usedbysnapshots 0B -
store01/bench usedbydataset 40.7G -
store01/bench usedbychildren 0B -
store01/bench usedbyrefreservation 0B -
store01/bench logbias latency default
store01/bench objsetid 33352 -
store01/bench dedup off inherited from store01
store01/bench mlslabel none default
store01/bench sync disabled inherited from store01
store01/bench dnodesize legacy default
store01/bench refcompressratio 1.00x -
store01/bench written 40.7G -
store01/bench logicalused 40.7G -
store01/bench logicalreferenced 40.7G -
store01/bench volmode default default
store01/bench filesystem_limit none default
store01/bench snapshot_limit none default
store01/bench filesystem_count none default
store01/bench snapshot_count none default
store01/bench snapdev hidden default
store01/bench acltype posix local
store01/bench context none default
store01/bench fscontext none default
store01/bench defcontext none default
store01/bench rootcontext none default
store01/bench relatime off default
store01/bench redundant_metadata all default
store01/bench overlay on default
store01/bench encryption off default
store01/bench keylocation none default
store01/bench keyformat none default
store01/bench pbkdf2iters 0 default
store01/bench special_small_blocks 128K inherited from store01
ZFS Stripe 2x NVME
READ: bw=375MiB/s (394MB/s), 375MiB/s-375MiB/s (394MB/s-394MB/s), io=3070MiB (3219MB), run=8180-8180msec
WRITE: bw=125MiB/s (132MB/s), 125MiB/s-125MiB/s (132MB/s-132MB/s), io=1026MiB (1076MB), run=8180-8180msec