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Re: [RFA 1/2] Speed up dict_hash

From: Tom Tromey <tom at tromey dot com>
To: Pedro Alves <palves at redhat dot com>
Cc: Tom Tromey <tom at tromey dot com>, gdb-patches at sourceware dot org
Date: Wed, 08 Nov 2017 16:01:33 -0700
Subject: Re: [RFA 1/2] Speed up dict_hash
Authentication-results: sourceware.org; auth=none
References: <20171104161356.17565-1-tom@tromey.com> <20171104161356.17565-2-tom@tromey.com> <d3914b48-bdf4-c0c8-7f4e-26f48fcd7acc@redhat.com> <87y3ngr4p7.fsf@tromey.com> <ad860603-339f-7451-b751-60bd22818b00@redhat.com>

>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:

Pedro> I'm seeing a lot of time (24%!) spent in gettext, via complaints...

Hmm, that sounds familiar somehow.

Pedro> Maybe you were building with --disable-intl before?

Not intentionally but perhaps I was missing a dependency.

Pedro> The patch below, improves "gdb -nx -readnow -batch gdb"
Pedro> from ~11.s to ~7.8s, for me (gcc 5.3.1, -O2, x86_64).

Seems like a good idea.  -readnow isn't really used, of course, but I
use it as a simpler-to-measure proxy for CU expansion time, which does
matter occasionally.

Tom

Follow-Ups:
- Re: [RFA 1/2] Speed up dict_hash
  - From: Pedro Alves

References:
- [RFA 0/2] some minor symbol-reading performance improvements
  - From: Tom Tromey
- [RFA 1/2] Speed up dict_hash
  - From: Tom Tromey
- Re: [RFA 1/2] Speed up dict_hash
  - From: Pedro Alves
- Re: [RFA 1/2] Speed up dict_hash
  - From: Tom Tromey
- Re: [RFA 1/2] Speed up dict_hash
  - From: Pedro Alves

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