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Re: malloc: performance improvements and bugfixes
- From: Jörn Engel <joern at purestorage dot com>
- To: Torvald Riegel <triegel at redhat dot com>
- Cc: "GNU C. Library" <libc-alpha at sourceware dot org>, Siddhesh Poyarekar <siddhesh dot poyarekar at gmail dot com>, Will Newton <will dot newton at linaro dot org>, Joern Engel <joern at purestorage dot org>
- Date: Tue, 26 Jan 2016 09:14:35 -0800
- Subject: Re: malloc: performance improvements and bugfixes
- Authentication-results: sourceware.org; auth=none
- References: <1453767872-19161-1-git-send-email-joern at purestorage dot com> <1453810961 dot 4592 dot 100 dot camel at localhost dot localdomain>
On Tue, Jan 26, 2016 at 01:22:41PM +0100, Torvald Riegel wrote:
> Could you describe the workloads you used to select / validate these
> changes? While several of the items you listed might be generally
> useful, others are certainly workload-specific, at least as far as
> choices regarding trade-offs are concerned.
Think a single heavily multithreaded process consuming most of the
system, then make it latency-sensitive and you are pretty much there.
I think the hugepage stuff is pretty unique to us, but most of the rest
should apply to anything big and performance-sensitive.
Indeed no one even takes up the study of arts and crafts merely for
the sake of knowledge, but all men do all they do for the resulting
pleasure, good, or utility.