From: Rick Jones <rick.jones2@hp•com>
To: hadi@cyberus•ca
Cc: David Miller <davem@davemloft•net>,
eric.dumazet@gmail•com, therbert@google•com,
netdev@vger•kernel.org, robert@herjulf•net, xiaosuo@gmail•com,
andi@firstfloor•org
Subject: Re: rps perfomance WAS(Re: rps: question
Date: Thu, 15 Apr 2010 13:25:26 -0700 [thread overview]
Message-ID: <4BC77636.5060506@hp.com> (raw)
In-Reply-To: <1271362581.23780.12.camel@bigi>
jamal wrote:
> On Thu, 2010-04-15 at 09:41 -0700, Rick Jones wrote:
>
>
>>IPS (~= RPS) was running on shared FSB HP9000's. Now, that was also a BSD
>>networking stack with netisrq's and the like. TOPS (~= RFS) was also run on
>>shared FSB HP9000s, as well as CC-NUMA HP9000s and Integrity systems. TOPS was
>>implemented in a Streams-based stack tracing its history to a common ancestor
>>with Solaris (Mentat).
>
>
> Sounds interesting.
> Wikipedia information overload. Any arch description of the HP9000?
I should have been more specific - HP 9000 Model 800's :) PA-RISC based business
computers running HP-UX. In the case of IPS, HP-UX 10.20 ca 1995 or so.
> Did your scheme use IPIs to message the other CPUs?
Netisrs were kernel processes one per CPU (back then a core, a processor and a
CPU were one and the same :), and while we didn't call them IPI's, yes, it was a
"soft interrupt" directed at the given processor to launch the netisr if it
wasn't already running.
TOPS was similar, but was with Streams and that did/does have some kernel
processes not everything would happen as a kernel process.
rick jones
HP 3000 Model 900's - by and large the same PA-RISC hardware but running MPE/XL
(later called MPE/iX)
HP 9000 Model 700's - PA-RISC based workstations
HP 9000 Model 300's - Moto 68K-based workstations (replaced by the 700s)
next prev parent reply other threads:[~2010-04-15 20:25 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-07 18:42 rps: question jamal
2010-02-08 5:58 ` Tom Herbert
2010-02-08 15:09 ` jamal
2010-04-14 11:53 ` rps perfomance WAS(Re: " jamal
2010-04-14 17:31 ` Tom Herbert
2010-04-14 18:04 ` Eric Dumazet
2010-04-14 18:53 ` jamal
2010-04-14 19:44 ` Stephen Hemminger
2010-04-14 19:58 ` Eric Dumazet
2010-04-15 8:51 ` David Miller
2010-04-14 20:22 ` jamal
2010-04-14 20:27 ` Eric Dumazet
2010-04-14 20:38 ` jamal
2010-04-14 20:45 ` Tom Herbert
2010-04-14 20:57 ` Eric Dumazet
2010-04-14 22:51 ` Changli Gao
2010-04-14 23:02 ` Stephen Hemminger
2010-04-15 2:40 ` Eric Dumazet
2010-04-15 2:50 ` Changli Gao
2010-04-15 8:57 ` David Miller
2010-04-15 12:10 ` jamal
2010-04-15 12:32 ` Changli Gao
2010-04-15 12:50 ` jamal
2010-04-15 23:51 ` Changli Gao
2010-04-15 8:51 ` David Miller
2010-04-14 20:34 ` Andi Kleen
2010-04-15 8:50 ` David Miller
2010-04-15 8:48 ` David Miller
2010-04-15 11:55 ` jamal
2010-04-15 16:41 ` Rick Jones
2010-04-15 20:16 ` jamal
2010-04-15 20:25 ` Rick Jones [this message]
2010-04-15 23:56 ` Changli Gao
2010-04-16 5:18 ` Eric Dumazet
2010-04-16 6:02 ` Changli Gao
2010-04-16 6:28 ` Tom Herbert
2010-04-16 6:32 ` Eric Dumazet
2010-04-16 13:42 ` jamal
2010-04-16 7:15 ` Andi Kleen
2010-04-16 13:27 ` jamal
2010-04-16 13:37 ` Andi Kleen
2010-04-16 13:58 ` jamal
2010-04-16 13:21 ` jamal
2010-04-16 13:34 ` Changli Gao
2010-04-16 13:49 ` jamal
2010-04-16 14:10 ` Changli Gao
2010-04-16 14:43 ` jamal
2010-04-16 14:58 ` Changli Gao
2010-04-19 12:48 ` jamal
2010-04-17 7:35 ` Eric Dumazet
2010-04-17 8:43 ` Tom Herbert
2010-04-17 9:23 ` Eric Dumazet
2010-04-17 14:27 ` Eric Dumazet
2010-04-17 17:26 ` Tom Herbert
2010-04-17 14:17 ` [PATCH net-next-2.6] net: remove time limit in process_backlog() Eric Dumazet
2010-04-18 9:36 ` David Miller
2010-04-17 17:31 ` rps perfomance WAS(Re: rps: question jamal
2010-04-18 9:39 ` Eric Dumazet
2010-04-18 11:34 ` Eric Dumazet
2010-04-19 2:09 ` jamal
2010-04-19 9:37 ` [RFC] rps: shortcut net_rps_action() Eric Dumazet
2010-04-19 9:48 ` Changli Gao
2010-04-19 12:14 ` Eric Dumazet
2010-04-19 12:28 ` Changli Gao
2010-04-19 13:27 ` Eric Dumazet
2010-04-19 14:22 ` Eric Dumazet
2010-04-19 15:07 ` [PATCH net-next-2.6] " Eric Dumazet
2010-04-19 16:02 ` Tom Herbert
2010-04-19 20:21 ` David Miller
2010-04-20 7:17 ` [PATCH net-next-2.6] rps: cleanups Eric Dumazet
2010-04-20 8:18 ` David Miller
2010-04-19 23:56 ` [PATCH net-next-2.6] rps: shortcut net_rps_action() Changli Gao
2010-04-20 0:32 ` Changli Gao
2010-04-20 5:55 ` Eric Dumazet
2010-04-20 12:02 ` rps perfomance WAS(Re: rps: question jamal
2010-04-20 13:13 ` Eric Dumazet
[not found] ` <1271853570.4032.21.camel@bigi>
2010-04-21 19:01 ` Eric Dumazet
2010-04-22 1:27 ` Changli Gao
2010-04-22 12:12 ` jamal
2010-04-25 2:31 ` Changli Gao
2010-04-26 11:35 ` jamal
2010-04-26 13:35 ` Changli Gao
2010-04-21 21:53 ` Rick Jones
2010-04-16 15:57 ` Tom Herbert
2010-04-14 18:53 ` Stephen Hemminger
2010-04-15 8:42 ` David Miller
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