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LKML: Adrian Bunk: Re: [openib-general] Re: [PATCH 13/13] [RFC] ipath Kconfig and Makefile
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At<br />> the low latency numbers we measuring (1.29us), this is a very important<br />> difference to our customers.<br />>...<br /><br />There's no doubt that this is important for your customers.<br /><br />What surprises me is that -O3 turned out to be the fastest flag for you.<br /><br />Can you send numbers comparing -Os/-O2/-O3 (without -g3, preferable with <br />gcc 4.0) including a description what and how you are measuring?<br /><br />> Regards,<br />> Robert.<br /><br />cu<br />Adrian<br /><br />[1] not long ago, it used to be the other way round that drivers weren't<br /> 64bit clean...<br /><br />-- <br /><br /> "Is there not promise of rain?" Ling Tan asked suddenly out<br /> of the darkness. There had been need of rain for many days.<br /> "Only a promise," Lao Er said.<br /> Pearl S. Buck - Dragon Seed<br /><br />-<br />To unsubscribe from this list: send the line "unsubscribe linux-kernel" in<br />the body of a message to majordomo@vger.kernel.org<br />More majordomo info at <a href="http://vger.kernel.org/majordomo-info.html">http://vger.kernel.org/majordomo-info.html</a><br />Please read the FAQ at <a href="http://www.tux.org/lkml/">http://www.tux.org/lkml/</a><br /><br /></pre></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerr.gif" width="32" height="32" alt="\" /></td></tr><tr><td align="right" valign="bottom"> 聽 </td></tr><tr><td align="right" valign="bottom">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerl.gif" width="32" height="32" alt="\" /></td><td class="c">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerr.gif" width="32" height="32" alt="/" /></td></tr><tr><td align="right" valign="top" colspan="2"> 聽 </td><td class="lm">Last update: 2005-12-18 00:59 聽聽 [from the cache]<br />漏2003-2020 <a href="http://blog.jasper.es/"><span itemprop="editor">Jasper Spaans</span></a>|hosted at <a href="https://www.digitalocean.com/?refcode=9a8e99d24cf9">Digital Ocean</a> and my Meterkast|<a href="http://blog.jasper.es/categories.html#lkml-ref">Read the blog</a></td><td>聽</td></tr></table><script language="javascript" src="/js/styleswitcher.js" type="text/javascript"></script></body></html>