lists.openwall.net | 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
| ||
|
Date: Mon, 15 Jan 2007 11:58:12 +0200 From: "Robert Iakobashvili" <coroberti@...il.com> To: "Mark Ryden" <markryde@...il.com> Cc: netdev@...r.kernel.org Subject: Re: Two Dual Core processors and NICS (not handling interrupts on one CPU/assigning a Two Dual Core processors and NICS (not handling interrupts on one CPU / assigning a CPU to a NIC) Hi Mark, On 1/15/07, Mark Ryden <markryde@...il.com> wrote: > I have a machine with 2 dual core CPUs. This machine runs Fedora Core 6. > I have two Intel e1000 GigaBit network cards on this machine; I use bonding so > that the machine assigns the same IP address to both NICs ; > cat /proc/interrupts shops something like this: > CPU0 CPU1 CPU2 CPU3 > 50: 3359337 0 0 0 PCI-MSI eth0 > 58: 49 3396136 0 0 PCI-MSI eth1 > > CPU0 and CPU1 are of the first CPU as far as I understand ; so > this means as far as I understand that the second CPU (which has CPU3 > and CPU4) does not handle > interrupts of the arrived packets; Can I somehow change it so the second > CPU will also handle network interrupts of receiving packets on the nic ? > > Can I assign one CPU to eth0 and the second CPU to eth1 ? How it will help you? Y can set smp-affinity mask for each irq in /proc/<irq-number>/ google for 'linux smp-affinity". The subject in more details is discussed in: http://linux-net.osdl.org/index.php/TODO#TCP and thread http://marc.theaimsgroup.com/?t=116695290600001&r=1&w=2, read from bottom. -- Sincerely, Robert Iakobashvili, coroberti %x40 gmail %x2e com ................................................................... Navigare necesse est, vivere non est necesse ................................................................... http://sourceforge.net/projects/curl-loader A powerful open-source HTTP/S, FTP/S traffic generating, loading and testing tool. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists