I forgot to mention, my l2arc is used on the second pool on this system:
$ zpool iostat -v
capacity operations
bandwidth
pool alloc free read write read
write
------------------------------------------- ----- ----- ----- ----- -----
-----
fst 1.79T 1.84T 611 52 5.51M
968K
raidz1 1.79T 1.84T 611 52 5.51M
968K
wwn-0x5002538e4095da39 - - 154 12 1.40M
242K
wwn-0x5002538e4095bdd6 - - 150 12 1.36M
242K
wwn-0x5002538e4093c6fd - - 154 13 1.40M
242K
wwn-0x5002538e4095da30 - - 150 13 1.36M
242K
------------------------------------------- ----- ----- ----- ----- -----
-----
srv 1.69T 6.47T 45 11 4.08M
624K
mirror 576G 2.16T 15 3 1.36M
206K
ata-HGST_HUS724030ALA640_PN2234P8KTWJYY - - 5 1 464K
68.8K
ata-HGST_HUS724030ALA640_PN2234P9G620TW - - 5 1 465K
68.8K
ata-HGST_HUS724030ALA640_PN2234P9G66E2U - - 5 1 465K
68.8K
mirror 576G 2.16T 15 3 1.36M
209K
ata-HGST_HUS724030ALA640_PN2234P9G69TKU - - 5 1 465K
69.7K
ata-HGST_HUS724030ALA640_PN2234P9G69TXU - - 5 1 464K
69.7K
ata-HGST_HUS724030ALA640_PN2234P9G69U2U - - 5 1 464K
69.7K
mirror 576G 2.16T 15 3 1.36M
208K
ata-HGST_HUS724030ALA640_PN2234P9G6EBUU - - 5 1 464K
69.3K
ata-HGST_HUS724030ALA640_PN2234P9G6ESAU - - 5 1 464K
69.3K
ata-HGST_HUS724030ALA640_PN2234P9G6G70U - - 5 1 464K
69.3K
logs - - - - -
-
nvme0n1p1 776K 19.9G 0 0 1
1
cache - - - - -
-
nvme0n1p2 91.4G 1006G 11 1 52.5K
155K
------------------------------------------- ----- ----- ----- ----- -----
-----
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https://bugs.launchpad.net/bugs/1814983
Title:
zfs poor sustained read performance from ssd pool
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