From: Richard Farina <sidhayn@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Sujith Manoharan <c_manoha@qca.qualcomm.com>,
"Luis R. Rodriguez" <mcgrof@gmail.com>,
Hauke Mehrtens <hauke@hauke-m.de>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH 0/2] compat: fix extreme build slowdowns
Date: Fri, 30 Mar 2012 10:41:56 -0400 [thread overview]
Message-ID: <4F75C634.1010400@gmail.com> (raw)
In-Reply-To: <1333107022.3908.16.camel@jlt3.sipsolutions.net>
On 03/30/12 07:30, Johannes Berg wrote:
> On Fri, 2012-03-30 at 16:56 +0530, Sujith Manoharan wrote:
>> Johannes Berg wrote:
>>> Somehow exporting too many variables completely confuses the kernel's
>>> Makefiles into trying to calculate the size of every file in a very slow
>>> shell script ... this is causing EXTREME build slowdowns for me.
>>>
>>> These two patches fix it.
>> Nice.
>>
>> Trying to build ath9k..
>>
>> Before:
>>
>> real 1m18.689s
>> user 3m1.382s
>> sys 0m6.833s
>>
>> After:
>>
>> real 0m42.091s
>> user 1m30.024s
>> sys 0m5.700s
Please put this in stable as well, seems like a good thing ;-)
Thanks,
Rick
> Yeah, I also see about 50% build time now with everything in cache, if
> the files it's sizing up aren't in cache then it can be much slower with
> the old version.
>
> johannes
>
> --
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next prev parent reply other threads:[~2012-03-30 14:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-30 11:10 [PATCH 0/2] compat: fix extreme build slowdowns Johannes Berg
2012-03-30 11:11 ` [PATCH 1/2] compat-wireless: include config.mk early Johannes Berg
2012-03-30 11:11 ` [PATCH 2/2] compat: explicitly export generated variables Johannes Berg
2012-03-30 20:30 ` Luis R. Rodriguez
2012-03-30 20:34 ` Johannes Berg
2012-03-30 20:38 ` Luis R. Rodriguez
2012-03-30 11:26 ` [PATCH 0/2] compat: fix extreme build slowdowns Sujith Manoharan
2012-03-30 11:30 ` Johannes Berg
2012-03-30 14:41 ` Richard Farina [this message]
2012-03-30 20:43 ` Luis R. Rodriguez
2012-03-30 21:24 ` Luis R. Rodriguez
2012-03-30 21:48 ` Luis R. Rodriguez
2012-03-31 9:24 ` Luis R. Rodriguez
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