Date: Tue, 25 Oct 2011 13:55:55 -0700 From: Jason Wolfe <nitroboost@gmail.com> To: freebsd-net@freebsd.org Subject: Re: Intel 82574L interface wedging on em 7.1.9/7.2.3 when MSIX enabled Message-ID: <CAAAm0r1iS3z-7CBJ=xYDf%2BJOA1Q2nU0O54Twbyb7FjvgWHjKVw@mail.gmail.com> In-Reply-To: <CAAAm0r3XdsMHZh%2BP_NF-txZasdExzwZ8ymmGQgGhJQds0fOiBQ@mail.gmail.com> References: <CAAAm0r0RXEJo4UiKS=Ui0e5OQTg6sg-xcYf3mYB5%2Bvk8i8557w@mail.gmail.com> <4E8F157A.40702@sentex.net> <CAAAm0r2JH43Rct7UxQK2duH1p43Nepnj5mpb6bXo==DPayhJLg@mail.gmail.com> <4E8F51D4.1060509@sentex.net> <CACqU3MVwLaepFymZJkaVk6p=SpykGhqs=VYFjLh9fP9S=AxDhg@mail.gmail.com> <CAAAm0r1DKvoL9=Ket9up=4%2B5xiCzTTZJK99FhF9jcCA28B0M%2BA@mail.gmail.com> <CAAAm0r3XdsMHZh%2BP_NF-txZasdExzwZ8ymmGQgGhJQds0fOiBQ@mail.gmail.com>
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On Fri, Oct 7, 2011 at 2:14 PM, Jason Wolfe <nitroboost@gmail.com> wrote: > Bumping rx/tx descriptors to 2048 was actually for performance reasons and > not to try to get around the issue. I did some fairly in depth testing and > found under heavy load it performed the best with those settings. > > As mentioned on the other thread I'll re enable MSI-X on a few servers here > and collect uptime and the kernel msgbuf in addition. I'll bump the > descriptors down to 512 to try and increase our chances and compile the > driver with EM_MULTIQUEUE also. > > Jason > Hi there, So I have a small pool of server running EM_MULTIQUEUE with lower descriptors as promised and just received an alert of an event. I have a fairly large pool of servers on the same hardware running the same OS/driver sans MSI-X and multiqueue with not a single 'wedge' event in about 2 months now, and it seems multiqueue has not changed the commonality of the issue. Here is my loader.conf followed by everything collected: net.inet.tcp.tcbhashsize="4096" net.inet.tcp.syncache.hashsize="1024" net.inet.tcp.syncache.bucketlimit="512" net.inet.tcp.syncache.cachelimit="65536" net.inet.tcp.hostcache.hashsize="1024" net.inet.tcp.hostcache.bucketlimit="512" net.inet.tcp.hostcache.cachelimit="65536" hw.em.rxd="512" hw.em.txd="512" cc_cubic_load="YES" I bounced em1 because dropped packets incremented 1386169 to 1386355 and the interface is not incrementing packets out. 1:30PM up 4 days, 6:19, 0 users, load averages: 0.18, 0.38, 0.42 interrupt total rate irq3: uart1 5816 0 cpu0: timer 736655476 2000 irq256: em0:rx 0 38122306 103 irq257: em0:tx 0 1605535054 4359 irq258: em0:link 1 0 irq259: em1:rx 0 2192460862 5952 irq260: em1:tx 0 1599049303 4341 irq261: em1:link 4172 0 irq262: mps0 212448927 576 cpu2: timer 736647277 2000 cpu3: timer 736647302 2000 cpu1: timer 736647302 2000 Total 8594223798 23333 27653/6022/33675 mbufs in use (current/cache/total) 3054/3196/6250/5700670 mbuf clusters in use (current/cache/total/max) 3054/1041 mbuf+clusters out of packet secondary zone in use (current/cache) 23266/1642/24908/2850335 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/6400 9k jumbo clusters in use (current/cache/total/max) 0/0/0/3200 16k jumbo clusters in use (current/cache/total/max) 106085K/14465K/120550K bytes allocated to network (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 0/0/0 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 22 requests for I/O initiated by sendfile 0 calls to protocol drain routines Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll Drop em0 1500 <Link#1> 00:25:90:1f:f5:7d 38575296 0 0 6300959828 0 0 706638 em0 1500 fe80:1::225:9 fe80:1::225:90ff: 0 - - 3 - - - em1 1500 <Link#2> 00:25:90:1f:f5:7d 6091053202 22415 0 6327642657 0 0 1386797 em1 1500 fe80:2::225:9 fe80:2::225:90ff: 0 - - 1 - - - lagg0 1500 <Link#5> 00:25:90:1f:f5:7d 6129556798 0 0 12627493094 2093435 0 0 lagg0 1500 69.164.38.0/2 69.164.38.93 5429109508 - - 12630422599 - - - lagg0 1500 fe80:5::225:9 fe80:5::225:90ff: 12 - - 17 - - - lagg0 1500 2607:f4e8:310 2607:f4e8:310:12: 13655 - - 13663 - - - kern.msgbuf: Oct 25 13:30:04 cds1043 kernel: Interface is RUNNING and INACTIVE Oct 25 13:30:04 cds1043 kernel: em0: hw tdh = 105, hw tdt = 158 Oct 25 13:30:04 cds1043 kernel: em0: hw rdh = 191, hw rdt = 190 Oct 25 13:30:04 cds1043 kernel: em0: Tx Queue Status = 0 Oct 25 13:30:04 cds1043 kernel: em0: TX descriptors avail = 422 Oct 25 13:30:04 cds1043 kernel: em0: Tx Descriptors avail failure = 0 Oct 25 13:30:04 cds1043 kernel: em0: RX discarded packets = 0 Oct 25 13:30:04 cds1043 kernel: em0: RX Next to Check = 192 Oct 25 13:30:04 cds1043 kernel: em0: RX Next to Refresh = 191 Oct 25 13:30:04 cds1043 kernel: Interface is RUNNING and INACTIVE Oct 25 13:30:04 cds1043 kernel: em1: hw tdh = 159, hw tdt = 159 Oct 25 13:30:04 cds1043 kernel: em1: hw rdh = 193, hw rdt = 191 Oct 25 13:30:04 cds1043 kernel: em1: Tx Queue Status = 0 Oct 25 13:30:04 cds1043 kernel: em1: TX descriptors avail = 512 Oct 25 13:30:04 cds1043 kernel: em1: Tx Descriptors avail failure = 0 Oct 25 13:30:04 cds1043 kernel: em1: RX discarded packets = 0 Oct 25 13:30:04 cds1043 kernel: em1: RX Next to Check = 407 Oct 25 13:30:04 cds1043 kernel: em1: RX Next to Refresh = 436 net.inet.ip.intr_queue_maxlen: 512 net.inet.ip.intr_queue_drops: 0 dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.2.3 dev.em.0.%driver: em dev.em.0.%location: slot=0 function=0 dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9 subdevice=0x10d3 class=0x020000 dev.em.0.%parent: pci1 dev.em.0.nvm: -1 dev.em.0.debug: -1 dev.em.0.rx_int_delay: 0 dev.em.0.tx_int_delay: 66 dev.em.0.rx_abs_int_delay: 66 dev.em.0.tx_abs_int_delay: 66 dev.em.0.rx_processing_limit: 100 dev.em.0.flow_control: 3 dev.em.0.eee_control: 0 dev.em.0.link_irq: 1 dev.em.0.mbuf_alloc_fail: 0 dev.em.0.cluster_alloc_fail: 0 dev.em.0.dropped: 0 dev.em.0.tx_dma_fail: 0 dev.em.0.rx_overruns: 0 dev.em.0.watchdog_timeouts: 0 dev.em.0.device_control: 1074790984 dev.em.0.rx_control: 67141634 dev.em.0.fc_high_water: 18432 dev.em.0.fc_low_water: 16932 dev.em.0.queue0.txd_head: 208 dev.em.0.queue0.txd_tail: 208 dev.em.0.queue0.tx_irq: 1605545961 dev.em.0.queue0.no_desc_avail: 0 dev.em.0.queue0.rxd_head: 348 dev.em.0.queue0.rxd_tail: 347 dev.em.0.queue0.rx_irq: 38122461 dev.em.0.mac_stats.excess_coll: 0 dev.em.0.mac_stats.single_coll: 0 dev.em.0.mac_stats.multiple_coll: 0 dev.em.0.mac_stats.late_coll: 0 dev.em.0.mac_stats.collision_count: 0 dev.em.0.mac_stats.symbol_errors: 0 dev.em.0.mac_stats.sequence_errors: 0 dev.em.0.mac_stats.defer_count: 0 dev.em.0.mac_stats.missed_packets: 0 dev.em.0.mac_stats.recv_no_buff: 0 dev.em.0.mac_stats.recv_undersize: 0 dev.em.0.mac_stats.recv_fragmented: 0 dev.em.0.mac_stats.recv_oversize: 0 dev.em.0.mac_stats.recv_jabber: 0 dev.em.0.mac_stats.recv_errs: 0 dev.em.0.mac_stats.crc_errs: 0 dev.em.0.mac_stats.alignment_errs: 0 dev.em.0.mac_stats.coll_ext_errs: 0 dev.em.0.mac_stats.xon_recvd: 0 dev.em.0.mac_stats.xon_txd: 0 dev.em.0.mac_stats.xoff_recvd: 0 dev.em.0.mac_stats.xoff_txd: 0 dev.em.0.mac_stats.total_pkts_recvd: 38588018 dev.em.0.mac_stats.good_pkts_recvd: 38588018 dev.em.0.mac_stats.bcast_pkts_recvd: 38572739 dev.em.0.mac_stats.mcast_pkts_recvd: 1868 dev.em.0.mac_stats.rx_frames_64: 38572811 dev.em.0.mac_stats.rx_frames_65_127: 2762 dev.em.0.mac_stats.rx_frames_128_255: 12186 dev.em.0.mac_stats.rx_frames_256_511: 236 dev.em.0.mac_stats.rx_frames_512_1023: 23 dev.em.0.mac_stats.rx_frames_1024_1522: 0 dev.em.0.mac_stats.good_octets_recvd: 2470666426 dev.em.0.mac_stats.good_octets_txd: 8361514233625 dev.em.0.mac_stats.total_pkts_txd: 6301004697 dev.em.0.mac_stats.good_pkts_txd: 6301004695 dev.em.0.mac_stats.bcast_pkts_txd: 80 dev.em.0.mac_stats.mcast_pkts_txd: 2425 dev.em.0.mac_stats.tx_frames_64: 36413025 dev.em.0.mac_stats.tx_frames_65_127: 648631416 dev.em.0.mac_stats.tx_frames_128_255: 7701802 dev.em.0.mac_stats.tx_frames_256_511: 11499983 dev.em.0.mac_stats.tx_frames_512_1023: 56954995 dev.em.0.mac_stats.tx_frames_1024_1522: 5539803478 dev.em.0.mac_stats.tso_txd: 0 dev.em.0.mac_stats.tso_ctx_fail: 0 dev.em.0.interrupts.asserts: 3 dev.em.0.interrupts.rx_pkt_timer: 0 dev.em.0.interrupts.rx_abs_timer: 0 dev.em.0.interrupts.tx_pkt_timer: 0 dev.em.0.interrupts.tx_abs_timer: 0 dev.em.0.interrupts.tx_queue_empty: 0 dev.em.0.interrupts.tx_queue_min_thresh: 0 dev.em.0.interrupts.rx_desc_min_thresh: 0 dev.em.0.interrupts.rx_overrun: 0 dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.2.3 dev.em.1.%driver: em dev.em.1.%location: slot=0 function=0 dev.em.1.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9 subdevice=0x10d3 class=0x020000 dev.em.1.%parent: pci2 dev.em.1.nvm: -1 dev.em.1.debug: -1 dev.em.1.rx_int_delay: 0 dev.em.1.tx_int_delay: 66 dev.em.1.rx_abs_int_delay: 66 dev.em.1.tx_abs_int_delay: 66 dev.em.1.rx_processing_limit: 100 dev.em.1.flow_control: 3 dev.em.1.eee_control: 0 dev.em.1.link_irq: 4172 dev.em.1.mbuf_alloc_fail: 0 dev.em.1.cluster_alloc_fail: 0 dev.em.1.dropped: 0 dev.em.1.tx_dma_fail: 0 dev.em.1.rx_overruns: 0 dev.em.1.watchdog_timeouts: 0 dev.em.1.device_control: 1074790984 dev.em.1.rx_control: 67141634 dev.em.1.fc_high_water: 18432 dev.em.1.fc_low_water: 16932 dev.em.1.queue0.txd_head: 159 dev.em.1.queue0.txd_tail: 159 dev.em.1.queue0.tx_irq: 1599049292 dev.em.1.queue0.no_desc_avail: 0 dev.em.1.queue0.rxd_head: 122 dev.em.1.queue0.rxd_tail: 121 dev.em.1.queue0.rx_irq: 2190215040 dev.em.1.mac_stats.excess_coll: 0 dev.em.1.mac_stats.single_coll: 0 dev.em.1.mac_stats.multiple_coll: 0 dev.em.1.mac_stats.late_coll: 0 dev.em.1.mac_stats.collision_count: 0 dev.em.1.mac_stats.symbol_errors: 0 dev.em.1.mac_stats.sequence_errors: 0 dev.em.1.mac_stats.defer_count: 0 dev.em.1.mac_stats.missed_packets: 22415 dev.em.1.mac_stats.recv_no_buff: 11223 dev.em.1.mac_stats.recv_undersize: 0 dev.em.1.mac_stats.recv_fragmented: 0 dev.em.1.mac_stats.recv_oversize: 0 dev.em.1.mac_stats.recv_jabber: 0 dev.em.1.mac_stats.recv_errs: 0 dev.em.1.mac_stats.crc_errs: 0 dev.em.1.mac_stats.alignment_errs: 0 dev.em.1.mac_stats.coll_ext_errs: 0 dev.em.1.mac_stats.xon_recvd: 0 dev.em.1.mac_stats.xon_txd: 0 dev.em.1.mac_stats.xoff_recvd: 0 dev.em.1.mac_stats.xoff_txd: 0 dev.em.1.mac_stats.total_pkts_recvd: 6091088292 dev.em.1.mac_stats.good_pkts_recvd: 6091065877 dev.em.1.mac_stats.bcast_pkts_recvd: 38569835 dev.em.1.mac_stats.mcast_pkts_recvd: 1860 dev.em.1.mac_stats.rx_frames_64: 2329378133 dev.em.1.mac_stats.rx_frames_65_127: 2592499514 dev.em.1.mac_stats.rx_frames_128_255: 7898056 dev.em.1.mac_stats.rx_frames_256_511: 15815777 dev.em.1.mac_stats.rx_frames_512_1023: 44494959 dev.em.1.mac_stats.rx_frames_1024_1522: 1100979438 dev.em.1.mac_stats.good_octets_recvd: 2043621877185 dev.em.1.mac_stats.good_octets_txd: 8381779145365 dev.em.1.mac_stats.total_pkts_txd: 6327642657 dev.em.1.mac_stats.good_pkts_txd: 6327642657 dev.em.1.mac_stats.bcast_pkts_txd: 2149 dev.em.1.mac_stats.mcast_pkts_txd: 11 dev.em.1.mac_stats.tx_frames_64: 36904932 dev.em.1.mac_stats.tx_frames_65_127: 662019693 dev.em.1.mac_stats.tx_frames_128_255: 7256854 dev.em.1.mac_stats.tx_frames_256_511: 11840333 dev.em.1.mac_stats.tx_frames_512_1023: 57343575 dev.em.1.mac_stats.tx_frames_1024_1522: 5552277270 dev.em.1.mac_stats.tso_txd: 0 dev.em.1.mac_stats.tso_ctx_fail: 0 dev.em.1.interrupts.asserts: 3934 dev.em.1.interrupts.rx_pkt_timer: 3 dev.em.1.interrupts.rx_abs_timer: 0 dev.em.1.interrupts.tx_pkt_timer: 0 dev.em.1.interrupts.tx_abs_timer: 0 dev.em.1.interrupts.tx_queue_empty: 0 dev.em.1.interrupts.tx_queue_min_thresh: 0 dev.em.1.interrupts.rx_desc_min_thresh: 0 dev.em.1.interrupts.rx_overrun: 1 Jason
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