Re: Major regression on hackbench with SLUB (more numbers)

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To: Christoph Lameter <clameter@...>
Cc: Peter Zijlstra <a.p.zijlstra@...>, Linus Torvalds <torvalds@...>, Steven Rostedt <rostedt@...>, LKML <linux-kernel@...>, Andrew Morton <akpm@...>, Christoph Hellwig <hch@...>, Rafael J. Wysocki <rjw@...>
Date: Friday, December 21, 2007 - 6:54 pm

* Christoph Lameter <clameter@sgi.com> wrote:


Christoph, /proc/slabinfo is an _ABI_. You HAVE to provide it. slabtop 
relies on it, people use it every day to monitor memory consumption.

I'm really getting worried that you are apparently incapable of grasping 
such _SIMPLE_ concepts. Who the heck cares whether you put in zeros or 
whatever else in some of the fields? People use it to know how many 
objects are allocated and sure SLUB knows that count, sheesh. How on 
earth can you come up with a lame excuse like that? You dont like the 
'SLAB' portion of the name perhaps? Is it NIH again?

Really, if your behavior is representative of how our SLAB allocator 
will be maintained in the future then i'm very, very worried :-( You 
ignore and downplay clear-cut regressions, you insult and attack 
testers, you are incredibly stupid about user ABIs (or pretend to be so) 
and you distort and mislead all the way. What will you be able to do in 
the much less clear-cut cases??

	Ingo
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Messages in current thread:
Major regression on hackbench with SLUB, Steven Rostedt, (Fri Dec 7, 1:50 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Thu Dec 13, 6:22 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 14, 12:24 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:22 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:37 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 21, 6:52 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 6:51 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 7:54 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 12:18 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 12:44 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:11 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 6:49 pm)
Re: Major regression on hackbench with SLUB (more numbers), Peter Zijlstra, (Fri Dec 21, 6:16 pm)
Re: Major regression on hackbench with SLUB (more numbers), Peter Zijlstra, (Fri Dec 21, 6:17 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:27 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 6:54 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Sat Dec 22, 2:01 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Sat Dec 22, 5:00 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Sat Dec 22, 8:59 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Mon Dec 24, 3:21 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Wed Dec 26, 5:31 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 28, 10:52 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Thu Dec 27, 1:51 am)
SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 4:28 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 6:59 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 7:22 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 7:54 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 7:53 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 7:58 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 8:02 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 8:45 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 10:19 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 11:26 pm)
Re: SLUB sysfs support, Christoph Lameter, (Wed Jan 2, 4:25 pm)
[patch] slub: provide /proc/slabinfo, Ingo Molnar, (Tue Jan 1, 12:23 pm)
Re: [patch] slub: provide /proc/slabinfo, Arjan van de Ven, (Fri Jan 4, 8:27 pm)
Re: [patch] slub: provide /proc/slabinfo, Linus Torvalds, (Fri Jan 4, 8:49 pm)
Re: Major regression on hackbench with SLUB (more numbers), Jason L Tibbitts III, (Sat Dec 22, 6:52 pm)
Re: Major regression on hackbench with SLUB (more numbers), Alessandro Suardi, (Sun Dec 23, 11:59 pm)
Re: Major regression on hackbench with SLUB (more numbers), Alexey Dobriyan, (Sat Dec 22, 9:01 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 7:51 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Mon Dec 24, 3:24 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 12:26 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 5:56 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 14, 2:15 am)
Re: Major regression on hackbench with SLUB, Linus Torvalds, (Fri Dec 7, 1:59 pm)
Re: Major regression on hackbench with SLUB, Linus Torvalds, (Fri Dec 7, 2:36 pm)
Re: Major regression on hackbench with SLUB, Christoph Lameter, (Thu Dec 13, 6:11 pm)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Sat Dec 8, 8:28 pm)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Sat Dec 8, 6:16 pm)
Re: Major regression on hackbench with SLUB, Björn, (Mon Dec 10, 3:38 am)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Mon Dec 10, 10:00 am)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Fri Dec 7, 2:58 pm)
Re: Major regression on hackbench with SLUB, Ingo Molnar, (Fri Dec 7, 1:55 pm)