Linux PARISC architecture development
 help / color / mirror / Atom feed
From: Joel Soete <soete.joel@tiscali.be>
Cc: parisc-linux@lists.parisc-linux.org
Subject: *lcul and memory granularity question[Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
Date: Fri, 03 Dec 2004 15:00:33 +0000	[thread overview]
Message-ID: <41B07F91.9000000@tiscali.be> (raw)
In-Reply-To: <20041111081154.GR15714@tausq.org>

Hello all,

Randolph Chung wrote:
> - *lclu* can be rewritten to do better than 1-byte at a time

I have an additional question about parisc alignment and this remark:
a char type var is 1byte align; ... but what's about a 3, 5, 7 and more bytes struct size?

My idea is that a 3bytes could be align as a 32bites word and clearing such struct could be done by clearing all the word;
the same for 5 and 7 bytes if aligned as 2*32bites and so on for an unrolled loop of the max cache size (128 bytes iirc);
and btw using a case define as we use for __put/get__user/kernel_asm?

Or the memory management is more complex then I imagine and I would really consider a 3bytes as 2+1 bytes (5=2*2+1, ...)?

Thanks a lot,
	Joel
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

  parent reply	other threads:[~2004-12-03 15:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-11  7:54 [parisc-linux] 2.6.10-rc1-pa11 profile data Grant Grundler
2004-11-11  8:11 ` Randolph Chung
2004-11-11 17:39   ` Carlos O'Donell
2004-11-11 17:42     ` Randolph Chung
2004-11-11 17:50       ` Matthew Wilcox
2004-11-11 17:59         ` Randolph Chung
2004-11-11 18:36           ` Grant Grundler
2004-11-11 18:23   ` Joel Soete
2004-11-11 18:51     ` Randolph Chung
2004-11-26 16:59   ` flush_kernel_[di]cache_page question? [WAS: " Joel Soete
2004-11-26 17:13     ` Randolph Chung
2004-11-26 19:02     ` Grant Grundler
2004-11-28 21:01   ` [id]cache meaning? [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data] Joel Soete
2004-11-28 21:13     ` Matthew Wilcox
2004-11-29  1:14       ` Michael S. Zick
2004-11-29  2:00         ` Matthew Wilcox
2004-12-01 17:44   ` More questions " Joel Soete
2004-12-01 17:56     ` Matthew Wilcox
2004-12-01 18:33       ` Joel Soete
2004-12-03 10:24     ` Joel Soete
2004-12-03 15:41       ` Randolph Chung
2004-12-07 14:42         ` Joel Soete
2004-12-03 15:00   ` Joel Soete [this message]
2004-12-03 15:13     ` *lcul and memory granularity question[Was: " Matthew Wilcox
2004-11-12  5:29 ` [parisc-linux] 2.6.10-rc1-pa11 profile data Grant Grundler

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=41B07F91.9000000@tiscali.be \
    --to=soete.joel@tiscali.be \
    --cc=parisc-linux@lists.parisc-linux.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox