Re: [perf-discuss] Kstat stability tags (trying again)

2009-09-16 Thread John Levon
On Wed, Sep 16, 2009 at 06:18:19PM -0500, Jason King wrote: > > All other Solaris software still uses the 'old' stability levels. It > > seems like a mistake to introduce the new ARC nomenclature just for > > kstats. > > That's what I did originally, but then the feedback was 'those aren't > used

Re: [perf-discuss] Kstat stability tags (trying again)

2009-09-16 Thread John Levon
On Tue, Sep 15, 2009 at 11:46:55PM -0500, Jason King wrote: > Being distracted by other things for the past few months, I'd like to > get moving on this again and try to get it knocked out. > > To recap, the idea is to associate stability levels to kstats > analogous to the stability levels assig

Re: [perf-discuss] ZFS performance issue - READ is slow as hell...

2009-06-10 Thread John Levon
On Wed, Jun 10, 2009 at 01:17:39AM -0700, roland wrote: > and sun has closed the ticket without leaving a comment why this > is not an issue. (11-Closed:Not a Defect (Closed)) There was a comment placed in a Sun-private section of the bug: sorry about this, it's against the policy. As the rea

Re: [perf-discuss] File events notification mechansim

2006-05-04 Thread John Levon
On Thu, May 04, 2006 at 08:46:01AM -0700, Bart Smaalders wrote: > >http://beaglewiki.org/Main_Page > > > >as well as some other GNOME things, apparently. > > This cannot scale. It doesn't necessarily need to scale; from my understanding, Beagle is more about watching ~/Documents/ than big lots o

Re: [perf-discuss] File events notification mechansim

2006-05-03 Thread John Levon
On Wed, May 03, 2006 at 07:31:08PM -0700, Prakash Sangappa wrote: > If you where to watch for events on an entire directory tree, what types > of events that would be? Presumably there would be some way to specify, but file creation/deletion would be the most obviously useful events. > How woul

Re: [perf-discuss] File events notification mechansim

2006-05-03 Thread John Levon
On Wed, May 03, 2006 at 02:44:01PM -0700, Prakash Sangappa wrote: > FILE_CREATE File/Directory was created. I think GNOME and others want to be able to watch an entire directory tree. It sounds like the proposal is that you can only watch a particular path "/etc/non_existent_file"

Re: [perf-discuss] Proposal for in-kernel buffering of CPC overflow events

2006-03-08 Thread John Levon
On Wed, Mar 08, 2006 at 03:15:16PM -0800, Russ Blaine wrote: > mechanism itself is also really convoluted Sure, it's a Pentium 4 :) > clean, responsible API. You do raise a good point, though, that perhaps > on Pentium IV we could use PEBS underneath the current proposed APIs to > deliver rich

Re: [perf-discuss] Proposal for in-kernel buffering of CPC overflow events

2006-03-08 Thread John Levon
On Fri, Feb 24, 2006 at 04:37:13PM -0800, Russ Blaine wrote: > CPC in-kernel buffering adds a counter buffer such that the user can > request the kernel to throw an overflow interrupt when the counter > buffer overflows. Has thought been given to the PEBS support in the Pentium IV? The hardware