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SvennD
Asked: 2016-07-28 00:06:09 +0800 CST

Centos 7 在大工作量上冻结

  • 772

我最近将我的服务器升级到 Centos 7；我要求用户在那里备份数据以进行升级。升级后，一些用户尝试解压缩备份 tar (~300Gb)，这导致服务器挂起/冻结。（不响应键盘/ssh 输入）（可重现）这也发生在其他占用大量资源的二进制文件中。

我监控了内存和 CPU，在冻结之前两者都是合理的，所以Centos 板上的结论是它是 I/0 限制。这似乎是正确的，因为解决方法nice成功完成了 untar。

我的问题是，我怎么能确定这不会在未来再次发生？（我可以限制 I/0 吗？）这是一台“离线”机器，因此用户期望有很大的试验自由度。（但显然我们不想每天都重置机器。）默认情况下我可以很好的流程吗？或者限制 I/0 使机器不会“冻结”？系统正在运行一个在 6 x 上具有 raid 6 的 raidcontrollerWestern Digital RE4

供参考的规格：（虽然工作量提高到 19）

iotop：（最大约 60 M/s）

Total DISK READ :      51.72 M/s | Total DISK WRITE :      42.40 M/s
Actual DISK READ:     786.07 K/s | Actual DISK WRITE:     131.94 K/s

顶部同时：

top - 09:58:27 up 1 day, 26 min,  6 users,  load average: 142.30, 144.85, 148.19
Tasks: 785 total,   8 running, 777 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.0 us,  6.5 sy, 93.0 ni,  0.0 id,  0.1 wa,  0.0 hi,  0.3 si,  0.0 st
KiB Mem : 52838147+total,   707112 free, 51992025+used,  7754104 buff/cache
KiB Swap:  4194300 total,        0 free,  4194300 used.  7746868 avail Mem

免费-m

              total        used        free      shared  buff/cache   available
Mem:         515997      507679         719           3        7598        7631
Swap:          4095        4095           0

猫 /proc/cpuinfo

processor       : 63
vendor_id       : GenuineIntel
cpu family      : 6
model           : 47
model name      : Intel(R) Xeon(R) CPU E7- 4830  @ 2.13GHz
stepping        : 2
microcode       : 0x37
cpu MHz         : 2134.000
cache size      : 24576 KB
physical id     : 3
siblings        : 16
core id         : 25
cpu cores       : 8
apicid          : 243
initial apicid  : 243
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt aes lahf_lm ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips        : 4266.05
clflush size    : 64
cache_alignment : 64
address sizes   : 44 bits physical, 48 bits virtual
power management:

lspci (raid 控制器)

02:00.0 RAID bus controller: 3ware Inc 9750 SAS2/SATA-II RAID PCIe (rev 05)

系统 ：

cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
uname -r
3.10.0-327.el7.x86_64

 lspci
00:00.0 Host bridge: Intel Corporation 5520/5500/X58 I/O Hub to ESI Port (rev 22)
00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 22)
00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 22)
00:07.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 7 (rev 22)
00:13.0 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub I/OxAPIC Interrupt Controller (rev 22)
00:14.0 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub System Management Registers (rev 22)
00:14.1 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 22)
00:14.2 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 22)
00:14.3 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub Throttle Registers (rev 22)
00:1a.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4
00:1a.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5
00:1a.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6
00:1a.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1
00:1d.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1
00:1d.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2
00:1d.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3
00:1d.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller
00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2
02:00.0 RAID bus controller: 3ware Inc 9750 SAS2/SATA-II RAID PCIe (rev 05)
04:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
04:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
05:01.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200eW WPCM450 (rev 0a)
fc:00.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 1 (rev 0c)
fc:00.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 2 (rev 0c)
fc:00.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 3 (rev 0c)
fc:00.6 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 4 (rev 0c)
fc:01.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Power Controller (rev 0c)
fc:02.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 0 (rev 0c)
fc:03.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 1 (rev 0c)
fc:04.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 0 (rev 0c)
fc:05.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0a (rev 0c)
fc:05.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0b (rev 0c)
fc:05.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0c (rev 0c)
fc:05.6 Host bridge: Intel Corporation Device 2b53 (rev 0c)
fc:06.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 1 (rev 0c)
fc:07.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1a (rev 0c)
fc:07.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1b (rev 0c)
fc:07.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1c (rev 0c)
fc:07.6 Host bridge: Intel Corporation Device 2b5b (rev 0c)
fc:08.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 0 (rev 0c)
fc:09.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 1 (rev 0c)
fc:0a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 2 (rev 0c)
fc:0b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 3 (rev 0c)
fc:0c.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 4 (rev 0c)
fc:0d.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 5 (rev 0c)
fc:0e.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 6 (rev 0c)
fc:0f.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 7 (rev 0c)
fc:10.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 0-1 (rev 0c)
fc:10.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 2-3 (rev 0c)
fc:10.4 Host bridge: Intel Corporation Device 2b32 (rev 0c)
fc:10.6 Host bridge: Intel Corporation Device 2b3a (rev 0c)
fc:11.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 4-5 (rev 0c)
fc:11.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 6-7 (rev 0c)
fc:11.4 Host bridge: Intel Corporation Device 2b36 (rev 0c)
fc:11.6 Host bridge: Intel Corporation Device 2b3e (rev 0c)
fc:12.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 0 (rev 0c)
fc:13.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 1 (rev 0c)
fc:14.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: REUT control/status (rev 0c)
fc:14.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: Misc. control/status (rev 0c)
fc:15.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: REUT control/status (rev 0c)
fc:15.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: Misc. control/status (rev 0c)
fc:17.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: REUT control/status (rev 0c)
fc:17.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: Misc. control/status (rev 0c)
fc:18.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: REUT control/status (rev 0c)
fc:18.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: Misc control/status (rev 0c)
fc:19.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: REUT control/status (rev 0c)
fc:19.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: Misc control/status (rev 0c)
fc:1a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 8 (rev 0c)
fc:1b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 9 (rev 0c)
fd:00.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 1 (rev 0c)
fd:00.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 2 (rev 0c)
fd:00.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 3 (rev 0c)
fd:00.6 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 4 (rev 0c)
fd:01.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Power Controller (rev 0c)
fd:02.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 0 (rev 0c)
fd:03.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 1 (rev 0c)
fd:04.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 0 (rev 0c)
fd:05.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0a (rev 0c)
fd:05.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0b (rev 0c)
fd:05.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0c (rev 0c)
fd:05.6 Host bridge: Intel Corporation Device 2b53 (rev 0c)
fd:06.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 1 (rev 0c)
fd:07.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1a (rev 0c)
fd:07.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1b (rev 0c)
fd:07.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1c (rev 0c)
fd:07.6 Host bridge: Intel Corporation Device 2b5b (rev 0c)
fd:08.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 0 (rev 0c)
fd:09.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 1 (rev 0c)
fd:0a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 2 (rev 0c)
fd:0b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 3 (rev 0c)
fd:0c.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 4 (rev 0c)
fd:0d.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 5 (rev 0c)
fd:0e.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 6 (rev 0c)
fd:0f.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 7 (rev 0c)
fd:10.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 0-1 (rev 0c)
fd:10.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 2-3 (rev 0c)
fd:10.4 Host bridge: Intel Corporation Device 2b32 (rev 0c)
fd:10.6 Host bridge: Intel Corporation Device 2b3a (rev 0c)
fd:11.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 4-5 (rev 0c)
fd:11.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 6-7 (rev 0c)
fd:11.4 Host bridge: Intel Corporation Device 2b36 (rev 0c)
fd:11.6 Host bridge: Intel Corporation Device 2b3e (rev 0c)
fd:12.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 0 (rev 0c)
fd:13.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 1 (rev 0c)
fd:14.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: REUT control/status (rev 0c)
fd:14.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: Misc. control/status (rev 0c)
fd:15.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: REUT control/status (rev 0c)
fd:15.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: Misc. control/status (rev 0c)
fd:17.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: REUT control/status (rev 0c)
fd:17.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: Misc. control/status (rev 0c)
fd:18.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: REUT control/status (rev 0c)
fd:18.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: Misc control/status (rev 0c)
fd:19.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: REUT control/status (rev 0c)
fd:19.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: Misc control/status (rev 0c)
fd:1a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 8 (rev 0c)
fd:1b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 9 (rev 0c)
fe:00.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 1 (rev 0c)
fe:00.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 2 (rev 0c)
fe:00.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 3 (rev 0c)
fe:00.6 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 4 (rev 0c)
fe:01.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Power Controller (rev 0c)
fe:02.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 0 (rev 0c)
fe:03.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 1 (rev 0c)
fe:04.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 0 (rev 0c)
fe:05.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0a (rev 0c)
fe:05.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0b (rev 0c)
fe:05.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0c (rev 0c)
fe:05.6 Host bridge: Intel Corporation Device 2b53 (rev 0c)
fe:06.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 1 (rev 0c)
fe:07.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1a (rev 0c)
fe:07.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1b (rev 0c)
fe:07.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1c (rev 0c)
fe:07.6 Host bridge: Intel Corporation Device 2b5b (rev 0c)
fe:08.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 0 (rev 0c)
fe:09.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 1 (rev 0c)
fe:0a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 2 (rev 0c)
fe:0b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 3 (rev 0c)
fe:0c.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 4 (rev 0c)
fe:0d.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 5 (rev 0c)
fe:0e.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 6 (rev 0c)
fe:0f.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 7 (rev 0c)
fe:10.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 0-1 (rev 0c)
fe:10.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 2-3 (rev 0c)
fe:10.4 Host bridge: Intel Corporation Device 2b32 (rev 0c)
fe:10.6 Host bridge: Intel Corporation Device 2b3a (rev 0c)
fe:11.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 4-5 (rev 0c)
fe:11.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 6-7 (rev 0c)
fe:11.4 Host bridge: Intel Corporation Device 2b36 (rev 0c)
fe:11.6 Host bridge: Intel Corporation Device 2b3e (rev 0c)
fe:12.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 0 (rev 0c)
fe:13.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 1 (rev 0c)
fe:14.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: REUT control/status (rev 0c)
fe:14.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: Misc. control/status (rev 0c)
fe:15.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: REUT control/status (rev 0c)
fe:15.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: Misc. control/status (rev 0c)
fe:16.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 2: REUT control/status (rev 0c)
fe:16.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 2: Misc. control/status (rev 0c)
fe:17.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: REUT control/status (rev 0c)
fe:17.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: Misc. control/status (rev 0c)
fe:18.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: REUT control/status (rev 0c)
fe:18.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: Misc control/status (rev 0c)
fe:19.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: REUT control/status (rev 0c)
fe:19.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: Misc control/status (rev 0c)
fe:1a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 8 (rev 0c)
fe:1b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 9 (rev 0c)
ff:00.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 1 (rev 0c)
ff:00.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 2 (rev 0c)
ff:00.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 3 (rev 0c)
ff:00.6 Host bridge: Intel Corporation Xeon Processor E7 Product Family System Configuration Controller 4 (rev 0c)
ff:01.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Power Controller (rev 0c)
ff:02.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 0 (rev 0c)
ff:03.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Caching Agent 1 (rev 0c)
ff:04.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 0 (rev 0c)
ff:05.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0a (rev 0c)
ff:05.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0b (rev 0c)
ff:05.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 0c (rev 0c)
ff:05.6 Host bridge: Intel Corporation Device 2b53 (rev 0c)
ff:06.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Home Agent 1 (rev 0c)
ff:07.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1a (rev 0c)
ff:07.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1b (rev 0c)
ff:07.4 Host bridge: Intel Corporation Xeon Processor E7 Product Family Memory Controller 1c (rev 0c)
ff:07.6 Host bridge: Intel Corporation Device 2b5b (rev 0c)
ff:08.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 0 (rev 0c)
ff:09.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 1 (rev 0c)
ff:0a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 2 (rev 0c)
ff:0b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 3 (rev 0c)
ff:0c.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 4 (rev 0c)
ff:0d.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 5 (rev 0c)
ff:0e.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 6 (rev 0c)
ff:0f.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 7 (rev 0c)
ff:10.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 0-1 (rev 0c)
ff:10.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 2-3 (rev 0c)
ff:10.4 Host bridge: Intel Corporation Device 2b32 (rev 0c)
ff:10.6 Host bridge: Intel Corporation Device 2b3a (rev 0c)
ff:11.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 4-5 (rev 0c)
ff:11.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Router Port 6-7 (rev 0c)
ff:11.4 Host bridge: Intel Corporation Device 2b36 (rev 0c)
ff:11.6 Host bridge: Intel Corporation Device 2b3e (rev 0c)
ff:12.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 0 (rev 0c)
ff:13.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Test and Debug 1 (rev 0c)
ff:14.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: REUT control/status (rev 0c)
ff:14.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 0: Misc. control/status (rev 0c)
ff:15.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: REUT control/status (rev 0c)
ff:15.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 1: Misc. control/status (rev 0c)
ff:16.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 2: REUT control/status (rev 0c)
ff:16.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 2: Misc. control/status (rev 0c)
ff:17.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: REUT control/status (rev 0c)
ff:17.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family QPI Physical Port 3: Misc. control/status (rev 0c)
ff:18.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: REUT control/status (rev 0c)
ff:18.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 0: Misc control/status (rev 0c)
ff:19.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: REUT control/status (rev 0c)
ff:19.2 Host bridge: Intel Corporation Xeon Processor E7 Product Family SMI Physical Port 1: Misc control/status (rev 0c)
ff:1a.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 8 (rev 0c)
ff:1b.0 Host bridge: Intel Corporation Xeon Processor E7 Product Family Last Level Cache Coherence Engine 9 (rev 0c)

// 更新

  • 这也发生在分配 java 作业的运行中，文件系统在冻结之前感觉“慢”。（ls -l，猫，...）
  • 更改标题以反映工作量，而不仅仅是 tar。
hardware io centos7

2 个回答

  1. 升级过程中是否更改了任何硬件？

    另请发布“lspci”输出。

    这听起来确实是个难题，因为我有几台 EL7 机器，它们的负载很重，没有问题。

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  2. Best Answer

    最后，它似乎是某种新的内核“功能”。在社区的帮助下，这似乎可行：/etc/sysctl.d/01-tune.conf (new file) # /proc/sys/vm/swappiness # 60 # /proc/sys/vm/vfs_cache_pressure # 100

    # don't swap, our disks are slow
# and we have plenty of memory
vm.swappiness=5

# lesser reclaim of "VFS caches, versus pagecache and swap"
vm.vfs_cache_pressure=50
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