Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c++ > #81989

Re: faster "CRC"- / "FNV"-hashing

Path csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From Bo Persson <bo@bo-persson.se>
Newsgroups comp.lang.c++
Subject Re: faster "CRC"- / "FNV"-hashing
Date Mon, 11 Oct 2021 13:58:31 +0200
Lines 15
Message-ID <isin78Fpis6U1@mid.individual.net> (permalink)
References <sjv5nb$7sp$1@dont-email.me> <3TP8J.82248$tG6.21234@fx39.iad> <sk0lga$94q$1@dont-email.me> <WTQ8J.225542$T_8.141095@fx48.iad> <sk0lrs$fvr$1@dont-email.me> <TZR8J.11209$yk1.5819@fx13.iad> <sk0u2a$ajc$1@dont-email.me> <wdT8J.185287$o45.132180@fx46.iad> <sk0vgf$6or$1@dont-email.me>
Mime-Version 1.0
Content-Type text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding 7bit
X-Trace individual.net nB+Y5eicXal1nl68BrXDaQuu2Kufktda6G9DjFHAE/Igl+cOMV
Cancel-Lock sha1:uQZvukbe1SIWDSVT3YXwtU4QNtY=
User-Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0
In-Reply-To <sk0vgf$6or$1@dont-email.me>
Content-Language sv
Xref csiph.com comp.lang.c++:81989

Show key headers only | View raw

On 2021-10-11 at 11:18, Bonita Montero wrote:
> Am 11.10.2021 um 11:11 schrieb Branimir Maksimovic:
> 
>> ASM code is most efficient always and works as tested without
>> surprises :P
> 
> ASM code can be faster in rare cases when you know everyting about
> your OoO-CPU, but in most cases the compiler generates better code.
> I've seen code from clang where you might think: there would be no
> ASM-programmer that knows all of these optimization-tricks.

In this case the asm code is supplied by Intel.

I bet they qualify for "you know everything about your OoO-CPU". :-)

Back to comp.lang.c++ | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-10 18:51 +0200
  Re: faster "CRC"- / "FNV"-hashing "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-10 12:36 -0700
    Re: faster "CRC"- / "FNV"-hashing scott@slp53.sl.home (Scott Lurndal) - 2021-10-10 22:51 +0000
      Re: faster "CRC"- / "FNV"-hashing "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-12 13:47 -0700
    Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 08:09 +0200
  Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 05:23 +0000
    Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 08:15 +0200
      Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 06:29 +0000
        Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 08:34 +0200
    Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 08:27 +0200
      Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 06:32 +0000
        Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 08:33 +0200
          Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 07:46 +0000
            Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 10:53 +0200
              Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 09:11 +0000
                Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 11:18 +0200
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 10:42 +0000
                Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 13:03 +0200
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 11:12 +0000
                Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 13:44 +0200
                Re: faster "CRC"- / "FNV"-hashing Bo Persson <bo@bo-persson.se> - 2021-10-11 13:58 +0200
                Re: faster "CRC"- / "FNV"-hashing David Brown <david.brown@hesbynett.no> - 2021-10-11 14:23 +0200
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 12:56 +0000
                Re: faster "CRC"- / "FNV"-hashing Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-11 15:55 +0200
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 16:55 +0000
                Re: faster "CRC"- / "FNV"-hashing RadicalRabbit@theburrow.co.uk - 2021-10-12 09:06 +0000
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-12 11:01 +0000
                Re: faster "CRC"- / "FNV"-hashing RadicalRabbit@theburrow.co.uk - 2021-10-12 14:49 +0000
                Re: faster "CRC"- / "FNV"-hashing David Brown <david.brown@hesbynett.no> - 2021-10-11 17:19 +0200
                Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 16:57 +0000
  Re: faster "CRC"- / "FNV"-hashing Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-11 05:41 +0000

csiph-web