lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 2 Mar 2012 15:16:12 +0100
From:	Jacek Luczak <>
To:	Chris Mason <>,
	Jacek Luczak <>,
	Theodore Tso <>,,
	linux-fsdevel <>,
	LKML <>,
Subject: Re: getdents - ext4 vs btrfs performance

2012/3/2 Chris Mason <>:
> On Fri, Mar 02, 2012 at 11:05:56AM +0100, Jacek Luczak wrote:
>> I've took both on tests. The subject is acp and spd_readdir used with
>> tar, all on ext4:
>> 1) acp:
>> 2) spd_readdir:
>> 3) both:
>> The acp looks much better than spd_readdir but directory copy with
>> spd_readdir decreased to 52m 39sec (30 min less).
> Do you have stats on how big these files are, and how fragmented they
> are?  For acp and spd to give us this, I think something has gone wrong
> at writeback time (creating individual fragmented files).

How big? Which files?

To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists