Linux性能测试 /proc目录

最新推荐文章于 2025-08-26 14:55:48 发布

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本文详细介绍了Linux内核中/proc文件系统的使用，包括CPU信息、内存使用情况、磁盘挂载点及系统分区等关键信息。通过展示具体命令输出，帮助开发者更好地理解系统状态和性能。

/proc文件系统 - 各种内核信息
/proc目录下文件提供了很多不同硬件设备和内核的详细信息。更多详情参见Linux kernel /proc。一般/proc例如：

[root@SM155 proc]# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Pentium(R) Dual  CPU  E2180  @ 2.00GHz
stepping        : 13
cpu MHz         : 2000.000
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
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 nx lm constant_tsc pni monitor ds_cpl est tm2 xtpr
bogomips        : 4002.68

[root@SM155 proc]# cat /proc/meminfo
MemTotal:      2073624 kB
MemFree:       1174376 kB
Buffers:         89440 kB
Cached:         676780 kB
SwapCached:          0 kB
Active:         517460 kB
Inactive:       317268 kB
HighTotal:     1178312 kB
HighFree:       426304 kB
LowTotal:       895312 kB
LowFree:        748072 kB
SwapTotal:     2008116 kB
SwapFree:      2008116 kB
Dirty:             192 kB
Writeback:           0 kB
Mapped:         135720 kB
Slab:            47856 kB
CommitLimit:   3044928 kB
Committed_AS:   659484 kB
PageTables:       2240 kB
VmallocTotal:   106488 kB
VmallocUsed:      4236 kB
VmallocChunk:   101040 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB
[root@SM155 proc]# 
[root@SM155 proc]#

[root@SM155 proc]# cat /proc/mounts
rootfs / rootfs rw 0 0
/proc /proc proc rw,nodiratime 0 0
none /dev tmpfs rw 0 0
/dev/root / ext3 rw 0 0
none /dev tmpfs rw 0 0
/proc /proc proc rw,nodiratime 0 0
/proc/bus/usb /proc/bus/usb usbfs rw 0 0
/sys /sys sysfs rw 0 0
none /dev/pts devpts rw 0 0
/dev/sda1 /boot ext3 rw 0 0
/dev/sda2 /share ext3 rw 0 0
none /dev/shm tmpfs rw 0 0
/dev/sdb1 /disk1 ext3 rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
/dev/sda2 /swb/log/stbdata/config ext3 rw 0 0

[root@SM155 proc]# cat /proc/zoneinfo
Node 0, zone      DMA
  pages free     2821
        min      17
        low      21
        high     25
        active   0
        inactive 0
        scanned  0 (a: 0 i: 0)
        spanned  4096
        present  4096
        protection: (0, 880, 1007)
  pagesets
    cpu: 0 pcp: 0
              count: 5
              low:   2
              high:  6
              batch: 1
    cpu: 0 pcp: 1
              count: 0
              low:   0
              high:  2
              batch: 1
    cpu: 1 pcp: 0
              count: 5
              low:   2
              high:  6
              batch: 1
    cpu: 1 pcp: 1
              count: 0
              low:   0
              high:  2
              batch: 1
  all_unreclaimable: 0
  prev_priority:     12
  temp_priority:     12
  start_pfn:         0