[zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-04-17 Thread Brad Green
Did you find a resoltion to this issue? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-01-09 Thread Neil Perrin
Ah, vi does an fsync. So I suspect that this is bug: 6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS Here's a snippet from the Evaluation: --- ZFS keeps in list in memory of all transactions and will push *all* of them out on a fsync.

[zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-01-09 Thread Anantha N. Srirama
I've some important information that should shed some light on this behavior: This evening I created a new filesystem across the very same 50 disks including the COMPRESS attribute. My goal was to isolate some workload to the new filesystem and started moving a 100GB directory tree over to the n

[zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-01-09 Thread Anantha N. Srirama
I'll see if I can confirm what you are suggesting. Thanks. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-01-08 Thread Bart Smaalders
Anantha N. Srirama wrote: Quick update, since my original post I've confirmed via DTrace (rwtop script in toolkit) that the application is not generating 150MB/S * compressratio of I/O. What then is causing this much I/O in our system? This message posted from opensolaris.org Are you doi

[zfs-discuss] Re: Puzzling ZFS behavior with COMPRESS option

2007-01-08 Thread Anantha N. Srirama
Quick update, since my original post I've confirmed via DTrace (rwtop script in toolkit) that the application is not generating 150MB/S * compressratio of I/O. What then is causing this much I/O in our system? This message posted from opensolaris.org __