From: "Chen, Kenneth W" <kenneth.w.chen@intel•com>
To: "'Steven Rostedt'" <rostedt@goodmis•org>,
"LKML" <linux-kernel@vger•kernel.org>,
"Andrew Morton" <akpm@osdl•org>
Cc: linux-mips@linux-mips•org,
David Mosberger-Tang <davidm@hpl•hp.com>,
linux-ia64@vger•kernel.org,
Martin Mares <mj@atrey•karlin.mff.cuni.cz>,
spyro@f2s•com, Joe Taylor <joe@tensilica•com>,
linuxppc-dev@ozlabs•org, paulus@samba•org,
benedict.gaster@superh•com, bjornw@axis•com,
Ingo Molnar <mingo@elte•hu>,
grundler@parisc-linux•org, starvik@axis•com,
Linus Torvalds <torvalds@osdl•org>,
Thomas Gleixner <tglx@linutronix•de>,
rth@twiddle•net, chris@zankel•net, "Luck,
Tony" <tony.luck@intel•com>, Andi Kleen <ak@suse•de>,
ralf@linux-mips•org, Marc Gauthier <marc@tensilica•com>,
lethal@linux-sh•org, schwidefsky@de•ibm.com, linux390@de•ibm.com,
davem@davemloft•net, parisc-linux@parisc-linux•org
Subject: RE: [PATCH 00/05] robust per_cpu allocation for modules
Date: Fri, 14 Apr 2006 15:12:52 -0700 [thread overview]
Message-ID: <4t16i2$ma94t@orsmga001.jf.intel.com> (raw)
In-Reply-To: <1145049535.1336.128.camel@localhost.localdomain>
Steven Rostedt wrote on Friday, April 14, 2006 2:19 PM
> So the current solution has two flaws:
> 1. not robust. If we someday add more modules that together take up
> more than 14K, we need to manually update the PERCPU_ENOUGH_ROOM.
> 2. waste of memory. We have 14K of memory wasted per CPU. Remember
> a 64 processor machine would be wasting 896K of memory!
If someone who has the money to own a 64-process machine, 896K of memory
is pocket change ;-)
- Ken
next prev parent reply other threads:[~2006-04-14 22:22 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-14 21:18 [PATCH 00/05] robust per_cpu allocation for modules Steven Rostedt
2006-04-14 22:06 ` Andrew Morton
2006-04-14 22:12 ` Steven Rostedt
2006-04-14 22:12 ` Chen, Kenneth W [this message]
2006-04-15 3:10 ` [PATCH 00/08] robust per_cpu allocation for modules - V2 Steven Rostedt
2006-04-15 5:32 ` [PATCH 00/05] robust per_cpu allocation for modules Nick Piggin
2006-04-15 20:17 ` Steven Rostedt
2006-04-16 2:47 ` Nick Piggin
2006-04-16 3:53 ` Steven Rostedt
2006-04-16 7:02 ` Paul Mackerras
2006-04-16 13:40 ` Steven Rostedt
2006-04-16 14:03 ` Sam Ravnborg
2006-04-16 15:34 ` Arnd Bergmann
2006-04-16 18:03 ` Tony Luck
2006-04-17 0:45 ` Steven Rostedt
2006-04-17 2:07 ` Arnd Bergmann
2006-04-17 2:17 ` Steven Rostedt
2006-04-17 20:06 ` Ravikiran G Thirumalai
2006-04-17 6:47 ` Rusty Russell
2006-04-17 11:33 ` Steven Rostedt
2006-04-16 7:06 ` Nick Piggin
2006-04-16 16:06 ` Steven Rostedt
2006-04-17 17:10 ` Andi Kleen
2006-04-17 16:55 ` Christoph Lameter
2006-04-17 22:02 ` Ravikiran G Thirumalai
2006-04-17 23:44 ` Steven Rostedt
2006-04-17 23:48 ` Christoph Lameter
2006-04-18 1:51 ` Steven Rostedt
2006-04-18 6:42 ` Nick Piggin
2006-04-18 12:47 ` Steven Rostedt
2006-04-16 6:35 ` Paul Mackerras
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