原创文章，转载请注明： 转载自Erlang非业余研究

本文链接地址: 洞悉Linux系统软硬件配置

我们在做服务器的时候，老大扔给你一台机器，要你在上面开发。通常服务器软件是非常依赖于系统的软硬件的，软件通常是要紧贴硬件的特性，如果我们不能了解机器的硬件，我们就无法高效的开发。

比如说想知道Linux的系统的版本，CPU有几个，内存多少大，

机器什么型号，Raid卡什么型号，硬盘有几个，文件系统是什么样子的，网卡什么型号，文件句柄设置什么的，用到虚拟化技术了吗，网络配置什么样的，目前资源使用是如何?

当然如果你足够有经验的话，这些问题难不倒你，但是你获取完全的这些信息是很麻烦的。

这时候Percona 来救助了。他提供了一整套工具来协助定位MySQL服务器的问题。这套工具适合于大部分的IO服务器。

Aspersa is a collection of open-source system utilities

primarily designed to ease the work of Percona consultants. This

manual is the primary documentation for Aspersa tools. Please

contribute your improvements.

项目地址：http://code.google.com/p/aspersa/

summary的使用文档：http://aspersa.googlecode.com/svn/html/summary.html

我们来参观下效果：

$ sudo ./summary

# Aspersa System Summary Report ##############################

Date | 2011-01-06 12:11:03 UTC (local TZ: CST +0800)

Hostname | test.flashcache.sqa.cm4

Uptime | 6 days, 2:55, 10 users, load average: 29.97, 27.25, 27.44

System | HP; ProLiant DL380 G7; vNot Specified (Rack Mount Chassis)

Service Tag | CNG035SF71

Release | Red Hat Enterprise Linux Server release 5.4 (Tikanga)

Kernel | 2.6.18-164.el5

Architecture | CPU = 64-bit, OS = 64-bit

Threading | NPTL 2.5

Compiler | GNU CC version 4.1.2 20080704 (Red Hat 4.1.2-44).

SELinux | Disabled

# Processor ##################################################

Processors | physical = 2, cores = 8, virtual = 16, hyperthreading = yes

Speeds | 16x2399.382

Models | 16xIntel(R) Xeon(R) CPU E5620 @ 2.40GHz

Caches | 16x12288 KB

# Memory #####################################################

Total | 70.74G

Free | 185.99M

Used | physical = 70.56G, swap = 180.00k, virtual = 70.56G

Buffers | 930.25M

Caches | 6.84G

Used | 60.64G

Swappiness | vm.swappiness = 0

DirtyPolicy | vm.dirty_ratio = 80, vm.dirty_background_ratio = 10

Locator Size Speed Form Factor Type Type Detail

========= ======== ================= ============= ============= ===========

PROC 1 DIMM 1G 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 2D 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 3A 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 4H 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 5E 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 6B 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 7I 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 8F 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 1 DIMM 9C 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 1G 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 2D 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 3A 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 4H 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 5E 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 6B 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 7I 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 8F 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

PROC 2 DIMM 9C 4096 MB 1333 MHz (0.8 ns) DIMM {OUT OF SPEC} Synchronous

# Mounted Filesystems ########################################

Filesystem Size Used Type Opts Mountpoint

/dev/cciss/c0d0p1 122M 10% ext3 (rw) /boot

/dev/cciss/c0d0p2 15G 4% ext3 (rw) /

/dev/cciss/c0d0p3 15G 3% ext3 (rw) /var

/dev/cciss/c0d0p5 15G 21% ext3 (rw) /usr

/dev/cciss/c0d0p6 9.5G 5% ext3 (rw) /home

/dev/cciss/c0d0p7 8.6G 31% ext3 (rw) /tmp

/dev/mapper/cachedev 1.6T 55% ext3 (rw,noatime,nodiratime,barrier=0) /u01

tmpfs 36G 0% tmpfs (rw) /dev/shm

# Disk Schedulers And Queue Size #############################

cciss!c0d0 | [deadline] 512

# Disk Partioning ############################################

Device Type Start End Size

============ ==== ========== ========== ==================

# Kernel Inode State #########################################

dentry-state | 144452 138117 45 0 0 0

file-nr | 3060 0 131072

inode-nr | 130370 52

# LVM Volumes ################################################

# RAID Controller ############################################

Controller | HP Smart Array

logicaldrive 1 (1.6 TB, RAID 1+0, OK)

physicaldrive 2C:1:1 (port 2C:box 1:bay 1, SAS, 300 GB, OK)

physicaldrive 2C:1:2 (port 2C:box 1:bay 2, SAS, 300 GB, OK)

physicaldrive 2C:1:3 (port 2C:box 1:bay 3, SAS, 300 GB, OK)

physicaldrive 2C:1:4 (port 2C:box 1:bay 4, SAS, 300 GB, OK)

physicaldrive 3C:1:5 (port 3C:box 1:bay 5, SAS, 300 GB, OK)

physicaldrive 3C:1:6 (port 3C:box 1:bay 6, SAS, 300 GB, OK)

physicaldrive 3C:1:7 (port 3C:box 1:bay 7, SAS, 300 GB, OK)

physicaldrive 3C:1:8 (port 3C:box 1:bay 8, SAS, 300 GB, OK)

physicaldrive 4C:2:1 (port 4C:box 2:bay 1, SAS, 300 GB, OK)

physicaldrive 4C:2:2 (port 4C:box 2:bay 2, SAS, 300 GB, OK)

physicaldrive 4C:2:3 (port 4C:box 2:bay 3, SAS, 300 GB, OK)

physicaldrive 4C:2:4 (port 4C:box 2:bay 4, SAS, 300 GB, OK)

# Virtualization #############################################

Technology | No virtualization detected

# Network Config #############################################

Controller | Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

Controller | Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

Controller | Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

Controller | Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

FIN Timeout | net.ipv4.tcp_fin_timeout = 60

Port Range | net.ipv4.ip_local_port_range = 1024 65000

# Interface Statistics #######################################

interface rx_bytes rx_packets rx_errors tx_bytes tx_packets tx_errors

========= ========= ========== ========== ========== ========== ==========

lo 751283431 1763251 0 751283431 1763251 0

eth0 2320706371 3237499907 0 1816207099 3507868329 0

eth1 69748430 918193 0 0 0 0

eth2 0 0 0 0 0 0

eth3 0 0 0 0 0 0

sit0 0 0 0 0 0 0

bond0 2390454801 3238418100 0 1816207099 3507868329 0

# Network Connections ########################################

Connections from remote IP addresses

10.232.21.113 38

10.232.21.114 33

10.232.21.115 43

10.232.21.116 38

10.232.21.117 38

10.232.21.118 39

10.232.21.119 37

10.232.21.120 37

10.232.21.121 40

10.232.21.122 42

10.232.21.138 13

10.232.21.139 9

10.232.21.140 9

10.232.21.151 9

10.232.21.152 7

10.232.21.153 7

10.232.21.154 7

10.232.21.155 7

10.232.21.156 7

10.232.21.157 8

10.232.31.221 11

10.232.31.228 10

Connections to local IP addresses

10.232.31.228 489

Connections to top 10 local ports

3306 474

45744 1

45750 1

45751 1

45757 1

45758 1

45764 1

45765 1

45771 1

45772 1

States of connections

ESTABLISHED 478

LISTEN 4

TIME_WAIT 21

# Top Processes ##############################################

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

12820 mysql 15 0 61.3g 60g 5204 S 930.4 85.5 1727:21 mysqld

3501 root 18 0 163m 5064 4424 S 29.6 0.0 382:44.05 tcprstat

2578 root 10 -5 0 0 0 R 25.7 0.0 1657:52 fct0-worker

22031 root 11 -5 0 0 0 S 4.0 0.0 27:22.33 kcopyd

50 root 10 -5 0 0 0 S 2.0 0.0 191:31.85 events/0

52 root 10 -5 0 0 0 S 2.0 0.0 90:51.61 events/2

58 root 10 -5 0 0 0 S 2.0 0.0 96:40.09 events/8

65 root 10 -5 0 0 0 S 2.0 0.0 18:32.29 events/15

22258 root 10 -5 0 0 0 S 2.0 0.0 11:14.77 kjournald

# Simplified vmstat (wait please) ############################

procs ---swap-- -----io---- ---system---- --------cpu--------

r b si so bi bo in cs us sy id wa st

24 7 0 0 8120 4418 4 2 29 12 33 27 0

29 3 0 0 100116 123105 67859 171497 47 17 23 12 0

18 7 0 0 84488 101152 67062 172806 43 15 26 16 0

15 9 0 0 95212 86349 62940 166373 47 16 26 11 0

24 6 0 0 97220 134367 68987 174163 47 18 24 11 0

# The End ####################################################

玩的开心！

Post Footer automatically generated bywp-posturl pluginfor

wordpress.