From: Randolph Chung <tausq@debian.org>
To: Grant Grundler <grundler@dsl2.external.hp.com>
Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux grundler
Date: Sun, 9 Feb 2003 15:56:56 -0800 [thread overview]
Message-ID: <20030209235656.GA31429@tausq.org> (raw)
In-Reply-To: <20030209191441.GA21938@dsl2.external.hp.com>
> I've not done or seen any lmbench perf results recently but before hpux
well, we can fix that... :) Here are the numbers for a 2x440Mhz A500 running
2.4.20-pa24 SMP.
btw, if you look at
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/015984.html
we are only 2-3x slower than hpux :-)
I'm a bit confused about the "mmap latency" numbers. why are they so
high?
Related to this, thibaut and I were experimenting with running dbench on
two A500s today running identical kernels, but one is 2x440MHz and one
is 2x550MHz. The 550MHz is almost 10x faster. Is that expected?
Memory/disk configurations (3GB RAM in 440MHz, 2.5GB in 550MHz, etc) are
not exactly the same, but I wouldn't have expected them to differ by that much.
randolph
L M B E N C H 2 . 0 S U M M A R Y
------------------------------------
Basic system parameters
----------------------------------------------------
Host OS Description Mhz
--------- ------------- ----------------------- ----
ios Linux 2.4.20- hppa64-linux-gnu 440
Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host OS Mhz null null open selct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
ios Linux 2.4.20- 440 0.73 1.85 10.2 11.8 110.8 2.17 16.9 17.K 41.K 85.K
Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
ios Linux 2.4.20- 5.630 5.1500 4.9900 9.0800 23.4 52.1 175.8
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
ios Linux 2.4.20- 5.630 20.4 48.4 89.2 172.5 114.1 351.5 1000
File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host OS 0K File 10K File Mmap Prot Page
Create Delete Create Delete Latency Fault Fault
--------- ------------- ------ ------ ------ ------ ------- ----- -----
ios Linux 2.4.20- 130.0 80.0 509.9 180.0 3120.0K 603.4 58.0
*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem
UNIX reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
ios Linux 2.4.20- 49.1 81.0 33.6 74.0 268.4 201.8 168.8 260. 250.9
Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
---------------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
ios Linux 2.4.20- 440 20.0 20.0 220.0 No L1 cache?
next prev parent reply other threads:[~2003-02-10 0:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030208222242.AA3554829@dsl2.external.hp.com>
[not found] ` <20030208222746.GB19683@dsl2.external.hp.com>
2003-02-08 23:23 ` [parisc-linux] Re: [parisc-linux-cvs] linux grundler Matthew Wilcox
2003-02-09 0:35 ` John David Anglin
2003-02-09 0:49 ` Randolph Chung
2003-02-09 0:56 ` Randolph Chung
2003-02-09 2:03 ` Matthew Wilcox
2003-02-09 2:18 ` John David Anglin
2003-02-09 14:55 ` James Bottomley
2003-02-09 2:11 ` John David Anglin
2003-02-09 3:27 ` Grant Grundler
2003-02-09 4:06 ` John David Anglin
2003-02-09 3:10 ` Grant Grundler
2003-02-09 12:29 ` Matthew Wilcox
2003-02-09 14:35 ` Matthew Wilcox
2003-02-09 19:14 ` Grant Grundler
2003-02-09 21:24 ` Aaron St. Pierre
2003-02-10 16:47 ` Grant Grundler
2003-02-09 23:56 ` Randolph Chung [this message]
2003-02-09 8:11 ` Grant Grundler
2003-02-09 12:21 ` Matthew Wilcox
2003-07-09 10:35 Joel Soete
[not found] <20030708022259.B62B849404E@palinux.hppa>
2003-07-08 15:06 ` Carlos O'Donell
-- strict thread matches above, loose matches on Subject: below --
2003-02-10 8:38 John Marvin
2003-02-09 8:55 [parisc-linux] " John Marvin
2003-02-09 7:40 John Marvin
2003-02-09 8:26 ` [parisc-linux] " Grant Grundler
[not found] <20020804011707.2B9164860@dsl2.external.hp.com>
2002-08-04 2:03 ` 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=20030209235656.GA31429@tausq.org \
--to=tausq@debian.org \
--cc=grundler@dsl2.external.hp.com \
--cc=parisc-linux@lists.parisc-linux.org \
--cc=willy@debian.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