How to Benchmark zpool?
I'm familiar with testing read speed of regular hard drive like this: dd if=/dev/daX of=/dev/null bs=65536 How would I go about testing the read speed of a version 13 zfs raid1z zpool? Thanks, Drew -- Be a Great Magician! Visit The Alchemist's Warehouse http://www.alchemistswarehouse.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to Benchmark zpool?
Drew Tomlinson wrote: I'm familiar with testing read speed of regular hard drive like this: dd if=/dev/daX of=/dev/null bs=65536 How would I go about testing the read speed of a version 13 zfs raid1z zpool? To get a qd result, I usually install mkfile: # pkg_add -r mkfile ...and then in a few terminal windows to get the write speed: # mkfile 50g bigfile.1 # mkfile 50g bigfile.2 # mkfile 50g bigfile.3 while in another terminal window, I watch: # zpool iostat 1 ...to get the read speed while still having the iostat term open: # dd if=bigfile.1 of=/dev/null bs=65536 amanda# zpool iostat 1 capacity operationsbandwidth pool used avail read write read write storage 1.53T 292G 1.02K 0 130M 0 storage 1.53T 292G 1.05K 0 134M 0 storage 1.53T 292G 1.02K 0 129M 0 storage 1.53T 292G 1.02K 0 129M 0 storage 1.53T 292G 1.05K 0 134M 0 Steve smime.p7s Description: S/MIME Cryptographic Signature
