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Date:      Fri, 16 Oct 2009 01:32:37 +0200
From:      Miroslav Lachman <000.fbsd@quip.cz>
To:        grarpamp <grarpamp@gmail.com>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: ZFS threads?
Message-ID:  <4AD7B115.2080104@quip.cz>
In-Reply-To: <d2e731a10910151524r5fea9a9enbc8c97d03f8498c7@mail.gmail.com>
References:  <d2e731a10910151524r5fea9a9enbc8c97d03f8498c7@mail.gmail.com>

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grarpamp wrote:

> I don't know about reducing them directly,
> maybe vfs.zfs.zfetch.max_streams. On mine
> it's 8 which might be that 0 through 7 you see.
> 
> This system has 9 zfs mountpoints and
> 104 spa_zio* threads. So you might try
> cutting mountpoints if possible.

I don't know how it is related, but I have system with 17 ZFS 
mountpoints and just 25 spa_zio threads (named as spa_zio_issue_2, 
spa_zio_intr_2 etc).
This is on 7.2-RELEASE-p2 amd64

Miroslav Lachman



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