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Re: [E1000-devel] Intel 2598EB 10-Gigabit AT dropped rx packet
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From: Mirko C. <mir...@ge...> - 2010-02-23 11:30:12
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Hi Donald, Ok, sorry for the lack of informations: I'm not used to interact with developers. :-) > How were you using netperf in your tests? What tests (I assume [UDP|TCP]_STREAM) and how many instances of netperf were running each side? > I'm running four instances of UDP_STREAM or TCP_STREAM tests on the tx side, with different packet sizes (from 1000 to 9000 byte) and a single netserver on the rx side. > > From the spec I got off the web on the R710 I can see they have either (2 PCIe x8 and 2 PCIe x4) or (1 PCIe x16 and 2 PCIe x4 ). I was just concerned you might be plugged into one of the x4 slots. I have 2 PCIe x8 on the so called "Riser 2" and 2 PCIe x4 on the "Riser 1". On each server the Intel cards are plugged into the Riser 2 slots. > >>> - Did you look at the dmesg for anything relative? >> I see no error or warning messages on both side. > > It's not just error or warning messages I was interested in, although they would be interesting too. :) We also printk a message that displays the type of PCIe link we have. This would answer the question I posed above about what slot the cards were in. > On rx side: [root@grids2 ~]# dmesg |grep ixgbe ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: None ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: None ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: None ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 8, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:bf ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX On tx side: [root@client20 ~]# dmesg |grep ixgbe ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 16, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: No DCA provider found. Please start ioatdma for DCA functionality. ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:e0 ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: None ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Down ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 16, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: No DCA provider found. Please start ioatdma for DCA functionality. ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:e0 ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 16, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: No DCA provider found. Please start ioatdma for DCA functionality. ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:e0 ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX ixgbe: eth0: ixgbe_remove: complete ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 2.0.44.14-NAPI ixgbe: 0000:07:00.0: ixgbe_init_interrupt_scheme: Multiqueue Enabled: Rx Queue count = 16, Tx Queue count = 1 ixgbe: eth0: ixgbe_probe: No DCA provider found. Please start ioatdma for DCA functionality. ixgbe: eth0: ixgbe_probe: (PCI Express:2.5Gb/s:Width x8) 00:1b:21:4b:c8:e0 ixgbe: eth0: ixgbe_probe: MAC: 1, PHY: 2, PBA No: d79893-017 ixgbe: eth0: ixgbe_probe: Internal LRO is enabled ixgbe: eth0: ixgbe_probe: Intel(R) 10 Gigabit Network Connection ixgbe: eth0: ixgbe_change_mtu: changing MTU from 1500 to 9000 ixgbe: eth0: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: RX/TX > > All that said we would expect to see rx_missed_errors with flow control disabled. Since nothing would be stopping packets from overrunning the buffer. Your test seems to be agreeing with this as the number of rx_missed_errors goes down with TCP (like you said) most likely due to TCP sliding window. > > You don't see this issue with flow control enabled, right? Right, but the throughput remains about 5.6 Gb/s and a can't figure out where the bottleneck could be.... Thanks a lot Mirko > >> -----Original Message----- >> From: Mirko Corosu [mailto:mir...@ge...] >> Sent: Saturday, February 20, 2010 10:50 AM >> To: Skidmore, Donald C >> Cc: E10...@li... >> Subject: Re: [E1000-devel] Intel 2598EB 10-Gigabit AT dropped rx packet >> >> Hi Donald, >> >> Thank you for your reply. >> >>> I have a couple additional questions >>> - What were you running to do this test? (i.e. netperf, pktgen?) >> netperf-2.4.2-1.el5.rf >> >>> - What throughput were you seeing? >> On tx side i see almost 10Gb/s, on rx side I see about 5.6 Gb/s >> >>> - Are both ports plugged into x8 PCIe slots >> Yes, both servers are Dell R710 with the same hardware configuration >> >>> - Did you look at the dmesg for anything relative? >> I see no error or warning messages on both side. >> >>> - Do you see this issue only with UDP? >> If I send a TCP stream I see on both side a throughput of about 5.54 >> Gb/s and less rx_missed_errors on rx side: >> >> NIC statistics: >> rx_packets: 1768101 >> tx_packets: 235384 >> rx_bytes: 15937257320 >> tx_bytes: 15704254 >> lsc_int: 2 >> tx_busy: 0 >> non_eop_descs: 7072222 >> rx_errors: 0 >> tx_errors: 0 >> rx_dropped: 0 >> tx_dropped: 0 >> multicast: 1 >> broadcast: 0 >> rx_no_buffer_count: 0 >> collisions: 0 >> rx_over_errors: 0 >> rx_crc_errors: 0 >> rx_frame_errors: 0 >> rx_fifo_errors: 0 >> rx_missed_errors: 1539 >> tx_aborted_errors: 0 >> tx_carrier_errors: 0 >> tx_fifo_errors: 0 >> tx_heartbeat_errors: 0 >> tx_timeout_count: 0 >> tx_restart_queue: 0 >> rx_long_length_errors: 0 >> rx_short_length_errors: 0 >> tx_tcp4_seg_ctxt: 0 >> tx_tcp6_seg_ctxt: 0 >> tx_flow_control_xon: 0 >> rx_flow_control_xon: 0 >> tx_flow_control_xoff: 0 >> rx_flow_control_xoff: 0 >> rx_csum_offload_good: 1768098 >> rx_csum_offload_errors: 0 >> tx_csum_offload_ctxt: 11 >> low_latency_interrupt: 0 >> alloc_rx_page_failed: 0 >> alloc_rx_buff_failed: 0 >> lro_aggregated: 1760417 >> lro_flushed: 375277 >> lro_recycled: 1012791 >> rx_no_dma_resources: 0 >> hw_rsc_count: 0 >> rx_flm: 0 >> fdir_match: 0 >> fdir_miss: 0 >> tx_queue_0_packets: 235384 >> tx_queue_0_bytes: 15704254 >> rx_queue_0_packets: 2 >> rx_queue_0_bytes: 120 >> rx_queue_1_packets: 8 >> rx_queue_1_bytes: 786 >> rx_queue_2_packets: 301752 >> rx_queue_2_bytes: 2719959436 >> rx_queue_3_packets: 562919 >> rx_queue_3_bytes: 5074118826 >> rx_queue_4_packets: 7 >> rx_queue_4_bytes: 726 >> rx_queue_5_packets: 15 >> rx_queue_5_bytes: 1526 >> rx_queue_6_packets: 313901 >> rx_queue_6_bytes: 2829476778 >> rx_queue_7_packets: 589497 >> rx_queue_7_bytes: 5313699122 >> >> I guess it's because of TCP flow control. >> >> I remember that the same behavior was triggered by enabling flow control >> on both cards (ethtool -A eth0 rx on tx on autoconf on) but I have to >> wait till Monday to perform another run to test that configuration. >> >> Thanks, >> >> Mirko >> >>> What I'm wondering is if this NIC was receiving faster than it could >> process them. >>> Thanks, >>> -Don Skidmore <Don...@in...> >>> >>> >>>> -----Original Message----- >>>> From: Mirko Corosu [mailto:mir...@ge...] >>>> Sent: Friday, February 19, 2010 5:30 AM >>>> To: E10...@li... >>>> Subject: [E1000-devel] Intel 2598EB 10-Gigabit AT dropped rx packet >>>> >>>> Dear all, >>>> >>>> I'm new to this list, if this isn't the right place to post this issue, >>>> please let me know. >>>> >>>> I am testing two Intel 82598EB 10-Gigabit AT network card mounted on two >>>> Dell R710 server with Red Hat Enterprise Linux 5.4 installed. The two >>>> NICs are directly connected each other (no switch in between). I am >>>> experiencing a problem on the receive side of the connection: I'm >> sending >>>> an UDP stream after having disabled flow control on each card, and about >>>> the 60% of the transmitted packets are dropped with a large number of >>>> rx_missed_errors. This is what ifconfig and ethtool -S show: >>>> >>>> [root@grids2]# ethtool -S eth0 >>>> NIC statistics: >>>> rx_packets: 1761794 >>>> tx_packets: 32 >>>> rx_bytes: 14748667944 >>>> tx_bytes: 5746 >>>> lsc_int: 2 >>>> tx_busy: 0 >>>> non_eop_descs: 6510828 >>>> rx_errors: 0 >>>> tx_errors: 0 >>>> rx_dropped: 0 >>>> tx_dropped: 0 >>>> multicast: 2 >>>> broadcast: 2 >>>> rx_no_buffer_count: 0 >>>> collisions: 0 >>>> rx_over_errors: 0 >>>> rx_crc_errors: 0 >>>> rx_frame_errors: 0 >>>> rx_fifo_errors: 0 >>>> rx_missed_errors: 1148382 >>>> tx_aborted_errors: 0 >>>> tx_carrier_errors: 0 >>>> tx_fifo_errors: 0 >>>> tx_heartbeat_errors: 0 >>>> tx_timeout_count: 0 >>>> tx_restart_queue: 0 >>>> rx_long_length_errors: 0 >>>> rx_short_length_errors: 0 >>>> tx_tcp4_seg_ctxt: 0 >>>> tx_tcp6_seg_ctxt: 0 >>>> tx_flow_control_xon: 0 >>>> rx_flow_control_xon: 0 >>>> tx_flow_control_xoff: 0 >>>> rx_flow_control_xoff: 0 >>>> rx_csum_offload_good: 28 >>>> rx_csum_offload_errors: 0 >>>> tx_csum_offload_ctxt: 11 >>>> low_latency_interrupt: 0 >>>> alloc_rx_page_failed: 0 >>>> alloc_rx_buff_failed: 0 >>>> lro_aggregated: 8 >>>> lro_flushed: 8 >>>> lro_recycled: 0 >>>> rx_no_dma_resources: 0 >>>> hw_rsc_count: 0 >>>> rx_flm: 0 >>>> fdir_match: 0 >>>> fdir_miss: 0 >>>> tx_queue_0_packets: 32 >>>> tx_queue_0_bytes: 5746 >>>> rx_queue_0_packets: 2 >>>> rx_queue_0_bytes: 120 >>>> rx_queue_1_packets: 2 >>>> rx_queue_1_bytes: 120 >>>> rx_queue_2_packets: 1761762 >>>> rx_queue_2_bytes: 14748664800 >>>> rx_queue_3_packets: 0 >>>> rx_queue_3_bytes: 0 >>>> rx_queue_4_packets: 0 >>>> rx_queue_4_bytes: 0 >>>> rx_queue_5_packets: 14 >>>> rx_queue_5_bytes: 1452 >>>> rx_queue_6_packets: 7 >>>> rx_queue_6_bytes: 726 >>>> rx_queue_7_packets: 7 >>>> rx_queue_7_bytes: 726 >>>> >>>> [root@grids2]# ifconfig eth0 >>>> >>>> eth0 Link encap:Ethernet HWaddr 00:1B:21:4B:C8:BF >>>> inet addr:10.100.100.2 Bcast:10.100.100.255 >> Mask:255.255.255.0 >>>> inet6 addr: fe80::21b:21ff:fe4b:c8bf/64 Scope:Link >>>> UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1 >>>> RX packets:1761795 errors:0 dropped:1148382 overruns:0 frame:0 >>>> TX packets:39 errors:0 dropped:0 overruns:0 carrier:0 >>>> collisions:0 txqueuelen:1000 >>>> RX bytes:14748668004 (13.7 GiB) TX bytes:9332 (9.1 KiB) >>>> >>>> Each interface has the MTU set to 9000, the driver is the one provided >>>> by Dell support (ixgbe 2.0.44.14-NAPI) with Rx multiqueue enabled and >>>> InterruptThrottleRate set to 8000 (but I tried 16000 and 32000 too). >>>> Also I tried to set FdirPballoc parameter to 0, 1 and 2 with no success. >>>> Single CPU load is no more than 10% with 8000 interrupt/s: >>>> >>>> [root@grids2 ~]# mpstat -P ALL 2 >>>> >>>> 05:16:43 PM CPU %user %nice %sys %iowait %irq %soft %steal >>>> %idle intr/s >>>> 05:16:45 PM all 0.00 0.00 0.06 0.00 0.06 1.19 0.00 >>>> 98.69 9018.00 >>>> 05:16:45 PM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1002.50 >>>> 05:16:45 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1.50 >>>> 05:16:45 PM 2 0.00 0.00 0.50 0.00 0.50 9.45 0.00 >>>> 89.55 8007.00 >>>> 05:16:45 PM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1.00 >>>> 05:16:45 PM 4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1.00 >>>> 05:16:45 PM 5 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 3.00 >>>> 05:16:45 PM 6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1.00 >>>> 05:16:45 PM 7 0.00 0.00 0.00 0.00 0.00 0.00 0.00 >>>> 100.00 1.00 >>>> >>>> I tried to configure smp affinity to assign the IRQ of each >>>> rx-queue to a different CPU, with no effect on the amount of dropped >>>> packets. I also verified that if I connect the NIC on a 10GE switch and >>>> send more than one stream from different servers, the card uses >>>> different rx-queues but the problem still exists. >>>> >>>> I modified the /etc/sysctl.conf file parameters adding: >>>> >>>> net.core.wmem_max = 16777216 >>>> net.core.wmem_default = 8388608 >>>> net.core.rmem_max = 16777216 >>>> net.core.rmem_default = 8388608 >>>> net.ipv4.tcp_rmem = 4096 262144 16777216 >>>> net.ipv4.tcp_wmem = 4096 262144 16777216 >>>> net.ipv4.tcp_mem = 4096 8388608 16777216 >>>> net.core.optmem_max = 524288 >>>> net.core.netdev_max_backlog = 200000 >>>> >>>> >>>> >>>> >>>> Some other details: >>>> >>>> - CPU: dual quad core Intel L5520 @ 2.27GHz (Hyper-Threading disabled) >>>> - RAM: 24 GB (12 X 2GB) >>>> - Slot PCI: PCIe gen.2 x8 >>>> - Kernel linux: 2.6.18-128.1.1.el5 and 2.6.18-164.2.1.el5 >>>> >>>> Any suggestions? >>>> Thank you very much in advance. >>>> >>>> Mirko Corosu >>>> >>>> -- >>>> >>>> ------------------------------------------------------------------------ >> -- >>>> Mirko Corosu >>>> Network and system administrator >>>> Computing Center >>>> Istituto Nazionale Fisica Nucleare >>>> Via Dodecaneso 33 >>>> 16146 Genova, Italy >>>> http://www.ge.infn.it >>>> ------------------------------------------------------------------------ >> -- >>>> >>>> >>>> ------------------------------------------------------------------------ >> --- >>>> --- >>>> Download Intel® Parallel Studio Eval >>>> Try the new software tools for yourself. Speed compiling, find bugs >>>> proactively, and fine-tune applications for parallel performance. >>>> See why Intel Parallel Studio got high marks during beta. >>>> http://p.sf.net/sfu/intel-sw-dev >>>> _______________________________________________ >>>> E1000-devel mailing list >>>> E10...@li... >>>> https://lists.sourceforge.net/lists/listinfo/e1000-devel >>>> To learn more about Intel® Ethernet, visit >>>> http://communities.intel.com/community/wired >> >> -- >> >> -------------------------------------------------------------------------- >> Mirko Corosu >> Istituto Nazionale Fisica Nucleare >> Via Dodecaneso 33 >> 16146 Genova >> www.ge.infn.it >> Phone +39 010 3536361 >> -------------------------------------------------------------------------- >> >> -------------------------------------------------------------------------- >> Se tutto sembra venirti incontro, probabilmente sei nella corsia sbagliata. >> -------------------------------------------------------------------------- > -- -------------------------------------------------------------------------- Mirko Corosu Network and system administrator Computing Center Istituto Nazionale Fisica Nucleare Via Dodecaneso 33 16146 Genova, Italy http://www.ge.infn.it -------------------------------------------------------------------------- -------------------------------------------------------------------------- Se tutto sembra venirti incontro, probabilmente sei nella corsia sbagliata. -------------------------------------------------------------------------- |
