We are seeing approx. 2x throughput increase for most workloads. Absolute numbers for UFO throughput vary, the numbers below are for pci-x 1.0 slots. In pci-x 2.0 slots we are seeing UFO performance close to 10Gbps.
> -----Original Message----- > From: Ananda Raju [mailto:[EMAIL PROTECTED] > Sent: Monday, November 14, 2005 2:14 PM > To: 'Andi Kleen' > Cc: [EMAIL PROTECTED]; netdev@vger.kernel.org; Leonid > Grossman; [EMAIL PROTECTED]; > [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: RE: [PATCH 2.6.15] s2io: UFO support > > Hi, > > Will send you updated patch which uses __cpu_to_be64(). > > Here is quick test I did with 60k packet buffer. With UFO we > reach upto 5.87 Gbits/sec compared to 3.55Gbits/sec non UFO case > > With two threads we can reach upto 7.25 Gbits/sec where as > non UFO still remains at 3.5 Gbits/sec > > linux:/home/araju/patch_sub/ufo # > /home/tools/iperf-2.0.1/src/iperf -c 17.1.1.220 -u -l60k -w256m -b10g > ------------------------------------------------------------ > Client connecting to 17.1.1.220, UDP port 5001 Sending 61440 > byte datagrams > UDP buffer size: 228 KByte (WARNING: requested 256 MByte) > ------------------------------------------------------------ > [ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 > port 5001 [ 3] 0.0-10.0 sec 6.83 GBytes 5.87 Gbits/sec [ > 3] Sent 119356 datagrams [ 3] WARNING: did not receive ack > of last datagram after 10 tries. > > linux:/home/araju/patch_sub/ufo # /tmp/ethtool-3/ethtool -K > eth3 ufo off > > linux:/home/araju/patch_sub/ufo # > /home/tools/iperf-2.0.1/src/iperf -c 17.1.1.220 -u -l60k -w256m -b10g > ------------------------------------------------------------ > Client connecting to 17.1.1.220, UDP port 5001 Sending 61440 > byte datagrams > UDP buffer size: 228 KByte (WARNING: requested 256 MByte) > ------------------------------------------------------------ > [ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 > port 5001 [ 3] 0.0-10.0 sec 4.13 GBytes 3.55 Gbits/sec [ > 3] Sent 72181 datagrams [ 3] WARNING: did not receive ack of > last datagram after 10 tries. > linux:/home/araju/patch_sub/ufo # ifconfig eth3 > eth3 Link encap:Ethernet HWaddr 00:11:25:7B:00:E2 > inet addr:17.1.1.221 Bcast:17.255.255.255 Mask:255.0.0.0 > inet6 addr: fe80::211:25ff:fe7b:e2/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:17 errors:0 dropped:0 overruns:0 frame:0 > TX packets:34713919 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:3246 (3.1 Kb) TX bytes:51228028448 (48854.8 Mb) > Interrupt:201 > > > linux:/home/araju/patch_sub/ufo # > /home/tools/iperf-2.0.1/src/iperf -c 17.1.1.220 -u -l60k > -w256m -b5g -P2 > ------------------------------------------------------------ > Client connecting to 17.1.1.220, UDP port 5001 Sending 61440 > byte datagrams > UDP buffer size: 228 KByte (WARNING: requested 256 MByte) > ------------------------------------------------------------ > [ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 > port 5001 [ 4] local 17.1.1.221 port 32776 connected with > 17.1.1.220 port 5001 > write2 failed: Connection refused > [ 4] 0.0- 1.0 sec 149 MBytes 1.23 Gbits/sec > [ 4] Sent 2550 datagrams > [ 4] WARNING: did not receive ack of last datagram after 10 tries. > [ 3] 0.0-10.0 sec 3.82 GBytes 3.29 Gbits/sec [ 3] Sent > 66840 datagrams [SUM] 0.0-10.0 sec 3.97 GBytes 3.41 > Gbits/sec [ 3] WARNING: did not receive ack of last datagram > after 10 tries. > > linux:/home/araju/patch_sub/ufo # /tmp/ethtool-3/ethtool -K > eth3 ufo on > > linux:/home/araju/patch_sub/ufo # > /home/tools/iperf-2.0.1/src/iperf -c 17.1.1.220 -u -l60k > -w256m -b5g -P2 > ------------------------------------------------------------ > Client connecting to 17.1.1.220, UDP port 5001 Sending 61440 > byte datagrams > UDP buffer size: 228 KByte (WARNING: requested 256 MByte) > ------------------------------------------------------------ > [ 4] local 17.1.1.221 port 32777 connected with 17.1.1.220 > port 5001 [ 3] local 17.1.1.221 port 32776 connected with > 17.1.1.220 port 5001 [ 4] 0.0-10.0 sec 4.91 GBytes 4.22 > Gbits/sec [ 4] Sent 61308 datagrams [ 3] 0.0-10.0 sec > 3.53 GBytes 3.03 Gbits/sec [ 3] Sent 61641 datagrams [SUM] > 0.0-10.0 sec 8.44 GBytes 7.25 Gbits/sec [ 4] WARNING: did > not receive ack of last datagram after 10 tries. > [ 3] WARNING: did not receive ack of last datagram after 10 tries. > linux:/home/araju/patch_sub/ufo # > > > -----Original Message----- > From: Andi Kleen [mailto:[EMAIL PROTECTED] > Sent: Monday, November 14, 2005 1:57 PM > To: Ananda Raju > Cc: [EMAIL PROTECTED]; netdev@vger.kernel.org; > [EMAIL PROTECTED]; > [EMAIL PROTECTED]; > [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: [PATCH 2.6.15] s2io: UFO support > > On Monday 14 November 2005 21:25, Ananda Raju wrote: > > Hi, > > This patch implements the UFO support in S2io driver. This > patch uses > > the > UFO > > interface available in linux-2.6.15 kernel. > > Can you share some numbers on how much difference it makes vs non UFO? > > > > +#ifdef __BIG_ENDIAN > > + sp->ufo_in_band_v[put_off] = > > + (u64)skb_shinfo(skb)->ip6_frag_id; > > +#else > > + sp->ufo_in_band_v[put_off] = > > + > (u64)skb_shinfo(skb)->ip6_frag_id << 32; #endif > > With __cpu_to_be64 you could avoid the ifdef. > > > -Andi > > - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
