[osol-code] Re: [ksh93-integration-discuss] Building ksh93 prototype005 - error

[Gavin Maltby]

On 04/26/07 10:25, Darren J Moffat wrote:
> Danek Duvall wrote:
>> On Wed, Apr 25, 2007 at 08:33:36AM +0200, Roland Mainz wrote:
>>
>>> (you're using dmake which means that an error long before this point may
>>> cause this build failure (and dmake just unrolls all the output of the
>>> pending jobs)) ?
>>
>> Useful tip: put DMAKE_OUTPUT_MODE=TXT2 in your environment, and dmake 
>> will
>> spit out the build output serially.  This means that there will be long
>> gaps between spurts of output into the log, but it makes the resulting 
>> log
>> much more readable.
> 
> Doesn't sound like this would have any impact on the actual build time 
> so any reason why nightly shouldn't make this the default ?

It could also speed up highly parallel builds over nfs.  I have noticed
considerable contention on the home-grown nfs rwlock for the
nightly.log file when building with aggressive max jobs (like 64-128);
at one stage I changed some nightly environment variable that
influenced the log to accumulate in /tmp - it's copied to the
log dir at the end, anyway.

Gavin