lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Mon, 07 May 2007 11:41:17 -0700
From:	"Michael Chan" <>
To:	"Rick Jones" <>
cc:	"David Miller" <>,,
	"netdev" <>
Subject: Re: [PATCH 10/11][TG3]: Reduce spurious interrupts.

On Mon, 2007-05-07 at 10:44 -0700, Rick Jones wrote:
> Mostly I was thinking that not all PIO reads are the same "length" and so the 
> effect of the PIO read will vary, perhaps considerably, with the platform, 
> particularly for a very large NUMA platform.

Oh I see.  If the PIO read is "long" on the platform, the performance
impact will be bigger.  But it probably also means that it takes longer
for the write to get to the chip to de-assert the IRQ.  Without the
read, it is therefore more likely to get an extra interrupt in such a

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists