Re: patch which implements ZFS LZ4 compression

2013-02-11 Thread Oliver Brandmueller
Hi, On Sat, Feb 09, 2013 at 12:44:36PM -0800, Jeremy Chadwick wrote: Bottom line: people enable compression on an fs, issue large amounts of write I/O to that fs (say hundreds of megabytes, or gigabytes), and start to see the entire system intermittently stalling hard (for multiple seconds at

Re: patch which implements ZFS LZ4 compression

2013-02-10 Thread Fabian Keil
Jeremy Chadwick j...@koitsu.org wrote: On Sat, Feb 09, 2013 at 03:19:18PM +0100, Fabian Keil wrote: Jeremy Chadwick j...@koitsu.org wrote: If you want a PR for it, I'll file one, but all it's going to contain is the contents of this Email. My impression is that your emails

Re: patch which implements ZFS LZ4 compression

2013-02-09 Thread Fabian Keil
Jeremy Chadwick j...@koitsu.org wrote: On Fri, Feb 08, 2013 at 02:52:57PM -0800, Xin Li wrote: On 02/08/13 14:29, Dan Langille wrote: Here is a patch against FreeBSD 9.1 STABLE which implements ZFS LZ4 compression. https://plus.google.com/106386350930626759085/posts/PLbkNfndPiM

Re: patch which implements ZFS LZ4 compression

2013-02-09 Thread Jeremy Chadwick
On Sat, Feb 09, 2013 at 03:19:18PM +0100, Fabian Keil wrote: Jeremy Chadwick j...@koitsu.org wrote: On Fri, Feb 08, 2013 at 02:52:57PM -0800, Xin Li wrote: On 02/08/13 14:29, Dan Langille wrote: Here is a patch against FreeBSD 9.1 STABLE which implements ZFS LZ4 compression.

Re: patch which implements ZFS LZ4 compression

2013-02-08 Thread Xin Li
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 02/08/13 14:29, Dan Langille wrote: Here is a patch against FreeBSD 9.1 STABLE which implements ZFS LZ4 compression. https://plus.google.com/106386350930626759085/posts/PLbkNfndPiM short link: http://bpaste.net/show/76095 Please DO NOT

Re: patch which implements ZFS LZ4 compression

2013-02-08 Thread Dan Langille
On Feb 8, 2013, at 5:52 PM, Xin Li wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 02/08/13 14:29, Dan Langille wrote: Here is a patch against FreeBSD 9.1 STABLE which implements ZFS LZ4 compression. https://plus.google.com/106386350930626759085/posts/PLbkNfndPiM short

Re: patch which implements ZFS LZ4 compression

2013-02-08 Thread Jeremy Chadwick
On Fri, Feb 08, 2013 at 02:52:57PM -0800, Xin Li wrote: On 02/08/13 14:29, Dan Langille wrote: Here is a patch against FreeBSD 9.1 STABLE which implements ZFS LZ4 compression. https://plus.google.com/106386350930626759085/posts/PLbkNfndPiM short link: http://bpaste.net/show/76095

Re: patch which implements ZFS LZ4 compression

2013-02-08 Thread Xin Li
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 For those who are inpatient, here is an overlay for LZ4 for 9-STABLE. http://people.freebsd.org/~delphij/misc/lz4.tar.xz Overwrite /usr/src and recompile ZFS module. Note: before using this in any serious environment, please be sure to test if