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Re: [RFC] Lock elision implementation guidelines
- From: Andi Kleen <andi at firstfloor dot org>
- To: libc-alpha at sourceware dot org
- Date: Tue, 11 Jun 2013 16:07:26 -0700
- Subject: Re: [RFC] Lock elision implementation guidelines
- References: <1360527652 dot 3065 dot 11521 dot camel at triegel dot csb> <1370618459 dot 16968 dot 11300 dot camel at triegel dot csb> <20130610114346 dot GA1384 at linux dot vnet dot ibm dot com>
Dominik Vogt <vogt@linux.vnet.ibm.com> writes:
>
> The attached program suffers from a massive performance loss
> caused by lock elision.
FWIW with TSX the difference between elision/no elision for your
test is within the measurement inaccuracy.
-Andi
--
ak@linux.intel.com -- Speaking for myself only