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Re: PR 54075 Fix hashtable::reserve
- From: Paolo Carlini <paolo dot carlini at oracle dot com>
- To: Jonathan Wakely <jwakely dot gcc at gmail dot com>
- Cc: François Dumont <frs dot dumont at gmail dot com>, "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 27 Jul 2012 00:28:45 +0200
- Subject: Re: PR 54075 Fix hashtable::reserve
- References: <500FBBCD.4010402@gmail.com> <CAH6eHdR1iUYopyyYhRx3rqDLi6RzAo4UaY15ZUk+rk8MABD1yw@mail.gmail.com>
On 07/25/2012 04:55 PM, Jonathan Wakely wrote:
Yes, I think so, it's a regression from 4.6.
Thanks for dealing with it so quickly.
Thanks indeed.
However, looks like we have another issue, unrelated to reserve, pure
performance not correctness, with the sheer number of rehashes when the
map grows. First blush doesn't seem something very too hard to fix, but
submitters for some reason don't feel like providing a complete testcase
for it...
Thanks again!
Paolo.