From: Alan Cox <alan@cymru.net>
To: davem@caip.rutgers.edu (David S. Miller)
Cc: lmlinux@neteng.engr.sgi.com, torvalds@cs.helsinki.fi,
sparclinux-cvs@caipfs.rutgers.edu, alan@cymru.net
Subject: Re: lmbench with new checksum code...
Date: Thu, 16 May 1996 10:35:04 +0100 (BST) [thread overview]
Message-ID: <199605160935.KAA09812@snowcrash.cymru.net> (raw)
In-Reply-To: <199605160653.CAA12098@huahaga.rutgers.edu> from "David S. Miller" at May 16, 96 02:53:50 am
> I doubt I can get 2mb/s more out of my code to beat solaris, sigh,
> where the heck could all this overhead possibly be???
What makes you think the Solaris loopback is even doing checksums or a memcpy
via kernel space ? They only way you'll beat solaris at the loopback network
game is to cheat as they do. Make tcp_connect spot a localhost connection
change the socket method to something akin to af_unix but streamlined a bit
(only special case is urgent data).
Alan
WARNING: multiple messages have this Message-ID (diff)
From: Alan Cox <alan@cymru.net>
To: "David S. Miller" <davem@caip.rutgers.edu>
Cc: lmlinux@neteng.engr.sgi.com, torvalds@cs.helsinki.fi,
sparclinux-cvs@caipfs.rutgers.edu, alan@cymru.net
Subject: Re: lmbench with new checksum code...
Date: Thu, 16 May 1996 10:35:04 +0100 (BST) [thread overview]
Message-ID: <199605160935.KAA09812@snowcrash.cymru.net> (raw)
Message-ID: <19960516093504.iii-JttQF51E_8qes8evgo-tjqhyo7Wf7p-5RHY0fIc@z> (raw)
In-Reply-To: <199605160653.CAA12098@huahaga.rutgers.edu> from "David S. Miller" at May 16, 96 02:53:50 am
> I doubt I can get 2mb/s more out of my code to beat solaris, sigh,
> where the heck could all this overhead possibly be???
What makes you think the Solaris loopback is even doing checksums or a memcpy
via kernel space ? They only way you'll beat solaris at the loopback network
game is to cheat as they do. Make tcp_connect spot a localhost connection
change the socket method to something akin to af_unix but streamlined a bit
(only special case is urgent data).
Alan
next prev parent reply other threads:[~1996-05-16 9:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-05-16 6:53 lmbench with new checksum code David S. Miller
1996-05-16 9:35 ` Alan Cox [this message]
1996-05-16 9:35 ` Alan Cox
1996-05-16 10:08 ` Linus Torvalds
1996-05-16 16:03 ` Greg Chesson
1996-05-16 16:03 Larry McVoy
1996-05-16 17:32 ` Alan Cox
1996-05-16 17:32 ` Alan Cox
1996-05-17 4:01 ` David S. Miller
1996-05-16 19:03 Neal Nuckolls
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