netdev - SKY2 vs SK98LIN performance on 88E8053 MAC

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 8 Jun 2007 13:41:55 -0700 (PDT)
From:	Philip Romanov <philip_romanov@...oo.com>
To:	netdev@...r.kernel.org
Subject: SKY2 vs SK98LIN performance on 88E8053 MAC

Hello!

We are observing severe IPv4 forwarding degradation 
when switching from sk98lin to sky2 driver. Setup:
plain 2.6.21.3 kernel, 88E8053 Marvell Yukon2 MAC,
sk98lin is @revision 8.41.2.3 coming from FC6, SKY2
driver from 2.6.21.3 kernel, both drivers are in NAPI
mode. 

Benchmarks are done using bidirectional traffic 
generated by IXIA, sending 256-byte packets. Observed 
packet throughput is almost 30% higher with sklin98
driver. 

Ethernet flow control is turned off in SKY2 driver 
(hard-coded as off, we know about this problem).  

I also have oprofile records of the drivers in case 
anybody is interested.

Please share info if you know anything on SKY2
performance bottlenecks.

 Thanks in advance,

    Philip R.

      ____________________________________________________________________________________
Shape Yahoo! in your own image.  Join our Network Research Panel today!   http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 

-
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