Date: Wed, 11 Jan 2017 00:02:26 -0500 From: Ultima <ultima1252@gmail.com> To: freebsd-current@freebsd.org, freebsd-fs@freebsd.org Subject: Sluggish performance on head r311648 Message-ID: <CANJ8om597G8-pi_gbq-niSa4iA5-XuZB1qnWjO8pC9_Jw3j22Q@mail.gmail.com>
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I'v been noticing lately sluggish performance, maybe zfs? First noticed this a few days ago right after upgrading on Jan 7th to r311648 and the last upgrade before that was around dec 30-jan 1 (not sure of rev). Decided to upgrade again today. I usually build and install head every week or two, but I have been extremely busy the past couple months. FreeBSD U1 12.0-CURRENT FreeBSD 12.0-CURRENT #16 r311903: Tue Jan 10 17:20:11 EST 2017 amd64 Normally when one of my services scans a few directories it takes about 15 seconds tops, it has been taking several minutes. I want to note that this service is running inside a jail with vnet enabled. Also the directory it scans is a nullfs to a dataset. This is just one of the many side effects i'v been noticing, another is extremely slow reads with bhyve+zvol. Starting to wonder if it maybe hardware related. I decided to check commits log before posting and not much has happened to zfs recently other than, Add missed vfs.zfs.zfetch.max_idistance in r309833, and 309714 which doesn't really look related (could be wrong). But these were committed about a month ago so that is not likely the case. Anyone else experiences similar results as of recent? Sorry for being noise if this is hardware related.home | help
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