From: Jeff Layton <laytonjb-fOdFMYwuEsI@public.gmane.org>
To: NILFS Users mailing list <users-JrjvKiOkagjYtjvyW6yDsg@public.gmane.org>
Subject: Re: IOzone testing
Date: Sat, 26 Sep 2009 12:32:04 -0400 [thread overview]
Message-ID: <4ABE4204.70704@att.net> (raw)
In-Reply-To: <C83C8B9E-C7E0-46B8-913E-6F0C407DE2E9-BUHhN+a2lJ4@public.gmane.org>
Byron Guernsey wrote:
> Be aware that garbage collection will take quite a while on a full
> drive to go back to 0 unless you also increase the segments cleaned
> per run and if you accidentally leave it high it will impact
> performance.
>
> This is why I had asked about a way to force a full GC with a
> protection period other than that in the conf file. It seems like
> quick forced cleanup when a user deletes a lot of files is a common
> need...
>
That is a good feature to add - quick full GC with a different
protection period. +1 on that option.
I think I might just to a mkfs in between runs to make sure that
the checkpoints are eliminated. That works for my testing but
it doesn't work for real, live, working file systems.
Jeff
next prev parent reply other threads:[~2009-09-26 16:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-26 12:13 IOzone testing Jeff Layton
[not found] ` <4ABE0553.3090502-fOdFMYwuEsI@public.gmane.org>
2009-09-26 12:54 ` Jérôme Poulin
[not found] ` <debc30fc0909260554s21969638h280d9e6f89b7596e-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-09-26 12:36 ` Jeff Layton
[not found] ` <4ABE0AD7.7000904-fOdFMYwuEsI@public.gmane.org>
2009-09-26 13:27 ` Jérôme Poulin
[not found] ` <debc30fc0909260627n12616bddif87b25f0ae64b6f5-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-09-26 13:14 ` Jeff Layton
[not found] ` <4ABE13D3.2080809-fOdFMYwuEsI@public.gmane.org>
2009-09-26 14:15 ` Jérôme Poulin
[not found] ` <debc30fc0909260715u562bd4b0g747327c3e1a0fe37-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-09-26 14:36 ` Jeff Layton
[not found] ` <4ABE2704.6030607-fOdFMYwuEsI@public.gmane.org>
2009-09-26 15:15 ` Jérôme Poulin
[not found] ` <debc30fc0909260815s412ee145xa90e02d9ce4c942f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-09-26 15:08 ` Jeff Layton
[not found] ` <4ABE2E86.5010708-fOdFMYwuEsI@public.gmane.org>
2009-09-26 16:29 ` Byron Guernsey
[not found] ` <C83C8B9E-C7E0-46B8-913E-6F0C407DE2E9-BUHhN+a2lJ4@public.gmane.org>
2009-09-26 16:32 ` Jeff Layton [this message]
2009-10-02 10:11 ` NILFS hanging SLES 11 - advise on diagnosis needed Barham, David
[not found] ` <80225669DEC80D488C4A0B5150466E1802F17EC3-q6sIb7dcTNEDs3eufgyKiYGWD8NUZu9dQQ4Iyu8u01E@public.gmane.org>
2009-10-02 11:42 ` Ryusuke Konishi
[not found] ` <20091002.204207.26501663.ryusuke-sG5X7nlA6pw@public.gmane.org>
2009-10-02 12:21 ` Fernando Jiménez Solano
2009-10-06 14:24 ` Barham, David
[not found] ` <80225669DEC80D488C4A0B5150466E1802F184D0-q6sIb7dcTNEDs3eufgyKiYGWD8NUZu9dQQ4Iyu8u01E@public.gmane.org>
2009-10-06 14:59 ` Barham, David
2009-10-02 16:20 ` NILFS space usage Barham, David
[not found] ` <80225669DEC80D488C4A0B5150466E1802F18005-q6sIb7dcTNEDs3eufgyKiYGWD8NUZu9dQQ4Iyu8u01E@public.gmane.org>
2009-10-02 16:59 ` Fernando Jiménez Solano
2009-09-26 18:06 ` IOzone testing Reinoud Zandijk
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