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Date:   Fri, 19 Jun 2020 13:16:41 -0400
From:   "Theodore Y. Ts'o" <>
To:     Alex Zhuravlev <>
Cc:     Благодаренко Артём 
        "" <>
Subject: Re: [PATCH 1/2] ext4:  mballoc - prefetching for bitmaps

On Sat, May 30, 2020 at 05:01:40AM +0000, Alex Zhuravlev wrote:
> Hi
> > On 29 May 2020, at 19:19, Благодаренко Артём <> wrote:
> > 
> > Also, we have encountered directory creating rate drop with this (not exact this, but Lustre FS version) patch. From 70-80K to 30-40K.
> > Excluding this patch restore rates to the original values.
> > I am investigating it now. Alex, do you expect this optimisation has impact to names creation?
> > Is plenty of files and directories creation corner case for this optimisation?
> Noticed as well, the last version posted to the list should have this problem fixed.

I'm not seeing any newer version of this patch since the one on this
thread, posted on May 15th.

Am I missing something?   What's the latest version of this patch that you have?

     	     		  	     	    - Ted

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