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aix網(wǎng)絡(luò)性能分析-展示頁(yè)

2025-07-08 08:43本頁(yè)面
  

【正文】 1023 0By type inuse calls failed delayed memuse memmax mapbStreams mblk statistic failures:0 high priority mblk failures0 medium priority mblk failures0 low priority mblk failures如果全局的統(tǒng)計(jì)信息沒(méi)有處于打開(kāi)狀態(tài),而您想確定被拒絕的 mbuf 請(qǐng)求的總數(shù)就可以每個(gè) CPU 下面的 failed 列中的值相疊加。要了解細(xì)節(jié)內(nèi)容,請(qǐng)參閱『mbuf 管理工具』,那里提到了有關(guān) thewall 和 maxmbuf 的使用。如果對(duì) mbuf 的請(qǐng)求指定了 M_WAIT 標(biāo)記,那么如果沒(méi)有可用的 mbuf 時(shí),線程就會(huì)進(jìn)入睡眠狀態(tài),直到有 mbuf 被釋放,能夠?yàn)檫@個(gè)線程所用。在 AIX 之前,失效的計(jì)數(shù)器也不能夠進(jìn)行增一,但那時(shí)沒(méi)有 delayed 這一列。如果 thewall 的值增加,就可以使用 vmstat 命令來(lái)監(jiān)控存儲(chǔ)器使用的總量,從而可以確定這個(gè)增加對(duì)總體的存儲(chǔ)器性能是否具有負(fù)面影響。記住一點(diǎn),如果 mbuf 的請(qǐng)求方指定,在沒(méi)有 mbuf 可以立即使用的情況下,它可以等待 mbuf 空閑。如果失效請(qǐng)求的數(shù)量持續(xù)增加,可能是因?yàn)橄到y(tǒng)出現(xiàn)了 mbuf 泄漏。分配一個(gè) mbuf 或是群集器并鎖定后,它可以被應(yīng)用程序所釋放。下一次再收到請(qǐng)求緩沖區(qū)時(shí),就會(huì)把它從自由列表中去除,這樣就避免了鎖定的動(dòng)作開(kāi)銷。當(dāng)自由列表的緩沖區(qū)總量達(dá)到了高限值之后,大小低于 4096 的緩沖區(qū)就會(huì)進(jìn)行合并,組成頁(yè)面大小的單元,這樣就可以解除它們的鎖定并歸還給系統(tǒng)。如果 freed 的值持續(xù)增大,那么上限值就太低。netstat vnetstat v 命令顯示的是正在運(yùn)行的每一個(gè)基于通用數(shù)據(jù)鏈接接口設(shè)備驅(qū)動(dòng)程序的統(tǒng)計(jì)信息。每個(gè)接口都有它自身的特定信息和一些通用信息。對(duì)于不同的適配器而言,統(tǒng)計(jì)量會(huì)有所不同。 netstat vETHERNET STATISTICS (ent0) :Device Type: IBM 10/100 Mbps Ethernet PCI Adapter (23100020)Hardware Address: 00:60:94:e9:29:18Elapsed Time: 9 days 19 hours 5 minutes 51 secondsTransmit Statistics: Receive Statistics: Packets: 0 Packets: 0Bytes: 0 Bytes: 0Interrupts: 0 Interrupts: 0Transmit Errors: 0 Receive Errors: 0Packets Dropped: 0 Packets Dropped: 0 Bad Packets: 0Max Packets on S/W Transmit Queue: 0S/W Transmit Queue Overflow: 0Current S/W+H/W Transmit Queue Length: 0Broadcast Packets: 0 Broadcast Packets: 0Multicast Packets: 0 Multicast Packets: 0No Carrier Sense: 0 CRC Errors: 0DMA Underrun: 0 DMA Overrun: 0Lost CTS Errors: 0 Alignment Errors: 0Max Collision Errors: 0 No Resource Errors: 0Late Collision Errors: 0 Receive Collision Errors: 0Deferred: 0 Packet Too Short Errors: 0SQE Test: 0 Packet Too Long Errors: 0Timeout Errors: 0 Packets Discarded by Adapter: 0Single Collision Count: 0 Receiver Start Count: 0Multiple Collision Count: 0Current HW Transmit Queue Length: 0General Statistics:No mbuf Errors: 0Adapter Reset Count: 0Driver Flags: Up Broadcast Running Simplex 64BitSupport PrivateSegmentIBM 10/100 Mbps Ethernet PCI Adapter Specific Statistics:Chip Version: 25RJ45 Port Link Status : downMedia Speed Selected: 10 Mbps Half DuplexMedia Speed Running: UnknownReceive Pool Buffer Size: 384Free Receive Pool Buffers: 128No Receive Pool Buffer Errors: 0Inter Packet Gap: 96Adapter Restarts due to IOCTL mands: 0Packets with Transmit collisions: 1 collisions: 0 6 collisions: 0 11 collisions: 0 2 collisions: 0 7 collisions: 0 12 collisions: 0 3 collisions: 0 8 collisions: 0 13 collisions: 0 4 collisions: 0 9 collisions: 0 14 collisions: 0 5 collisions: 0 10 collisions: 0 15 collisions: 0Excessive deferral errors: 0x0TOKENRING STATISTICS (tok0) :Device Type: IBM PCI Tokenring Adapter (14103e00)Hardware Address: 00:20:35:7a:12:8aElapsed Time: 29 days 18 hours 3 minutes 47 secondsTransmit Statistics: Receive Statistics: Packets: 1355364 Packets: 55782254Bytes: 791555422 Bytes: 6679991641Interrupts: 902315 Interrupts: 55782192Transmit Errors: 0 Receive Errors: 1Packets Dropped: 0 Packets Dropped: 0 Bad Packets: 0Max Packets on S/W Transmit Queue: 182S/W Transmit Queue Overflow: 42Current S/W+H/W Transmit Queue Length: 0Broadcast Packets: 18878 Broadcast Packets: 54615793Multicast Packets: 0 Multicast Packets: 569Timeout Errors: 0 Receive Congestion Errors: 0Current SW Transmit Queue Length: 0Current HW Transmit Queue Length: 0General Statistics:No mbuf Errors: 0 Lobe Wire Faults: 0Abort Errors: 12 AC Errors: 0Burst Errors: 1 Frame Copy Errors: 0Frequency Errors: 0 Hard Errors: 0Internal Errors: 0 Line Errors: 0Lost Frame Errors: 0 Only Station: 1Token Errors: 0 Remove Received: 0Ring Recovered: 17 Signal Loss Errors: 0Soft Errors: 35 Transmit Beacon Errors: 0Driver Flags: Up Broadcast Running AlternateAddress 64BitSupport ReceiveFunctionalAddr 16 MbpsIBM PCI Tokenring Adapter (14103e00) Specific Statistics:Media Speed Running: 16 Mbps Half DuplexMedia Speed Selected: 16 Mbps Full DuplexReceive Overruns : 0Transmit Underruns : 0ARI/FCI errors : 0Microcode level on the adapter :001PX11B2Num pkts in priority sw tx queue : 0Num pkts in priority hw tx queue : 0Open Firmware Level : 001PXRS02下面要講的是高亮顯示的字段: * 發(fā)送和接收錯(cuò)誤 這個(gè)設(shè)備所遇到的輸入 / 輸出
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