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  • proc信息

    1、内存

    derek@ubox:~/share/uspace$ cat /proc/meminfo 
    MemTotal:        1016124 kB
    MemFree:          258380 kB
    MemAvailable:     684700 kB
    Buffers:           31520 kB
    Cached:           518092 kB
    SwapCached:            0 kB
    Active:           446536 kB
    Inactive:         227444 kB
    Active(anon):     125276 kB
    Inactive(anon):    10520 kB
    Active(file):     321260 kB
    Inactive(file):   216924 kB
    Unevictable:           0 kB
    Mlocked:               0 kB
    SwapTotal:       1046524 kB
    SwapFree:        1046524 kB
    Dirty:              1156 kB
    Writeback:             0 kB
    AnonPages:        124364 kB
    Mapped:           116036 kB
    Shmem:             11432 kB
    Slab:              47392 kB
    SReclaimable:      31540 kB
    SUnreclaim:        15852 kB
    KernelStack:        3344 kB
    PageTables:        13696 kB
    NFS_Unstable:          0 kB
    Bounce:                0 kB
    WritebackTmp:          0 kB
    CommitLimit:     1554584 kB
    Committed_AS:    1237440 kB
    VmallocTotal:   34359738367 kB
    VmallocUsed:           0 kB
    VmallocChunk:          0 kB
    HardwareCorrupted:     0 kB
    AnonHugePages:     43008 kB
    CmaTotal:              0 kB
    CmaFree:               0 kB
    HugePages_Total:       0
    HugePages_Free:        0
    HugePages_Rsvd:        0
    HugePages_Surp:        0
    Hugepagesize:       2048 kB
    DirectMap4k:       61376 kB
    DirectMap2M:      987136 kB

    2,线程

    derek@ubox:~/share/uspace$ ps -axf | grep soft
        3 ?        S      0:00  \_ [ksoftirqd/0]
     1825 pts/8    S+     0:00              \_ grep --color=auto soft
    
    derek@ubox:~/share/uspace$ cat /proc/3/sched
    ksoftirqd/0 (3, #threads: 1)
    -------------------------------------------------------------------
    se.exec_start                                :        590932.293387
    se.vruntime                                  :         35639.237333
    se.sum_exec_runtime                          :            62.125157
    se.statistics.sum_sleep_runtime              :        590506.457835
    se.statistics.wait_start                     :             0.000000
    se.statistics.sleep_start                    :        590932.293387
    se.statistics.block_start                    :             0.000000
    se.statistics.sleep_max                      :         52720.886048
    se.statistics.block_max                      :             0.001631
    se.statistics.exec_max                       :             3.768195
    se.statistics.slice_max                      :             3.863267
    se.statistics.wait_max                       :            24.870060
    se.statistics.wait_sum                       :           177.815494
    se.statistics.wait_count                     :                 2145
    se.statistics.iowait_sum                     :             0.000000
    se.statistics.iowait_count                   :                    0
    se.nr_migrations                             :                    0
    se.statistics.nr_migrations_cold             :                    0
    se.statistics.nr_failed_migrations_affine    :                    0
    se.statistics.nr_failed_migrations_running   :                    0
    se.statistics.nr_failed_migrations_hot       :                    0
    se.statistics.nr_forced_migrations           :                    0
    se.statistics.nr_wakeups                     :                 2128
    se.statistics.nr_wakeups_sync                :                    0
    se.statistics.nr_wakeups_migrate             :                    0
    se.statistics.nr_wakeups_local               :                 2128
    se.statistics.nr_wakeups_remote              :                    0
    se.statistics.nr_wakeups_affine              :                    0
    se.statistics.nr_wakeups_affine_attempts     :                    0
    se.statistics.nr_wakeups_passive             :                    0
    se.statistics.nr_wakeups_idle                :                    0
    avg_atom                                     :             0.028962
    avg_per_cpu                                  :             0.000001
    nr_switches                                  :                 2145
    nr_voluntary_switches                        :                 2129
    nr_involuntary_switches                      :                   16
    se.load.weight                               :                 1024
    se.avg.load_sum                              :               134148
    se.avg.util_sum                              :               134148
    se.avg.load_avg                              :                    0
    se.avg.util_avg                              :                    0
    se.avg.last_update_time                      :         590932293387
    policy                                       :                    0
    prio                                         :                  120
    clock-delta                                  :                   34
    numa_pages_migrated                          :                    0
    numa_preferred_nid                           :                   -1
    total_numa_faults                            :                    0
    current_node=0, numa_group_id=0
    numa_faults node=0 task_private=0 task_shared=0 group_private=0 group_shared=0


    3,系统信息

    derek@ubox:~/share/uspace$ cat /proc/sys/kernel/sched_latency_ns 
    6000000
    derek@ubox:~/share/uspace$ cat /proc/sys/kernel/sched_rt_period_us 
    1000000

    derek@ubox:~/share/uspace$ cat /proc/version
    Linux version 4.4.0-72-generic (buildd@lcy01-17) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017
    derek@ubox:~/share/uspace$ cat /proc/cmdline
    BOOT_IMAGE=/boot/vmlinuz-4.4.0-72-generic root=UUID=8d6eb7f5-8f90-429d-b54d-4efbe3c9afb7 ro quiet splash

     

    4,中断:

    derek@ubox:~/share/uspace$ cat /proc/interrupts 
               CPU0       
      0:         36   IO-APIC   2-edge      timer
      1:         15   IO-APIC   1-edge      i8042
      8:          0   IO-APIC   8-edge      rtc0
      9:          0   IO-APIC   9-fasteoi   acpi
     12:        156   IO-APIC  12-edge      i8042
     14:          0   IO-APIC  14-edge      ata_piix
     15:       1663   IO-APIC  15-edge      ata_piix
     18:          1   IO-APIC  18-fasteoi   vboxvideo
     19:       4066   IO-APIC  19-fasteoi   enp0s3
     20:        830   IO-APIC  20-fasteoi   vboxguest
     21:      12350   IO-APIC  21-fasteoi   0000:00:0d.0, snd_intel8x0
     22:         29   IO-APIC  22-fasteoi   ohci_hcd:usb1
    NMI:          0   Non-maskable interrupts
    LOC:      41571   Local timer interrupts
    SPU:          0   Spurious interrupts
    PMI:          0   Performance monitoring interrupts
    IWI:          0   IRQ work interrupts
    RTR:          0   APIC ICR read retries
    RES:          0   Rescheduling interrupts
    CAL:          0   Function call interrupts
    TLB:          0   TLB shootdowns
    TRM:          0   Thermal event interrupts
    THR:          0   Threshold APIC interrupts
    DFR:          0   Deferred Error APIC interrupts
    MCE:          0   Machine check exceptions
    MCP:          6   Machine check polls
    ERR:          0
    MIS:          0
    PIN:          0   Posted-interrupt notification event
    PIW:          0   Posted-interrupt wakeup event

    5,cpu信息

    derek@ubox:~/share/uspace$ cat /proc/cpuinfo 
    processor       : 0
    vendor_id       : GenuineIntel
    cpu family      : 6
    model           : 94
    model name      : Intel(R) Core(TM) i3-6100 CPU @ 3.70GHz
    stepping        : 3
    cpu MHz         : 3695.996
    cache size      : 3072 KB
    physical id     : 0
    siblings        : 1
    core id         : 0
    cpu cores       : 1
    apicid          : 0
    initial apicid  : 0
    fpu             : yes
    fpu_exception   : yes
    cpuid level     : 22
    wp              : yes
    flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx rdrand hypervisor lahf_lm abm 3dnowprefetch rdseed clflushopt
    bugs            :
    bogomips        : 7391.99
    clflush size    : 64
    cache_alignment : 64
    address sizes   : 39 bits physical, 48 bits virtual
    power management:

    6,网络信息

    derek@ubox:~/share/uspace$ cat /proc/net/protocols 
    protocol  size sockets  memory press maxhdr  slab module     cl co di ac io in de sh ss gs se re sp bi br ha uh gp em
    PACKET    1408      1      -1   NI       0   no   kernel      n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n
    PINGv6    1088      0      -1   NI       0   yes  kernel      y  y  y  n  n  y  n  n  y  y  y  y  n  y  y  y  y  y  n
    RAWv6     1088      1      -1   NI       0   yes  kernel      y  y  y  n  y  y  y  n  y  y  y  y  n  y  y  y  y  n  n
    UDPLITEv6 1080      0      -1   NI       0   yes  kernel      y  y  y  n  y  y  y  n  y  y  y  y  n  n  y  y  y  y  n
    UDPv6     1080      2       8   NI       0   yes  kernel      y  y  y  n  y  n  y  n  y  y  y  y  n  n  y  y  y  y  n
    TCPv6     2056      3       1   no     304   yes  kernel      y  y  y  y  y  y  y  y  y  y  y  y  y  n  y  y  y  y  y
    UNIX      1024    243      -1   NI       0   yes  kernel      n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n
    UDP-Lite   920      0      -1   NI       0   yes  kernel      y  y  y  n  y  y  y  n  y  y  y  y  y  n  y  y  y  y  n
    PING       880      0      -1   NI       0   yes  kernel      y  y  y  n  n  y  n  n  y  y  y  y  n  y  y  y  y  y  n
    RAW        888      0      -1   NI       0   yes  kernel      y  y  y  n  y  y  y  n  y  y  y  y  n  y  y  y  y  n  n
    UDP        920     11       8   NI       0   yes  kernel      y  y  y  n  y  n  y  n  y  y  y  y  y  n  y  y  y  y  n
    TCP       1896      5       1   no     304   yes  kernel      y  y  y  y  y  y  y  y  y  y  y  y  y  n  y  y  y  y  y
    NETLINK   1160     30      -1   NI       0   no   kernel      n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n  n
    derek@ubox:~/share/uspace$ cat /proc/net/arp
    IP address       HW type     Flags       HW address            Mask     Device
    192.168.31.238   0x1         0x2         30:b4:9e:1a:ab:ee     *        enp0s3
    192.168.31.1     0x1         0x2         f0:b4:29:28:1f:b4     *        enp0s3
    derek@ubox:~/share/uspace$ cat /proc/net/packet 
    sk       RefCnt Type Proto  Iface R Rmem   User   Inode
    0000000000000000 3      3    0003   2     1 0      0      15421 
    derek@ubox:~/share/uspace$ cat /proc/net/route
    Iface   Destination     Gateway         Flags   RefCnt  Use     Metric  Mask            MTU     Window  IRTT                                                       
    enp0s3  00000000        011FA8C0        0003    0       0       100     00000000        0       0       0                                                                           
    enp0s3  0000FEA9        00000000        0001    0       0       1000    0000FFFF        0       0       0                                                                          
    enp0s3  001FA8C0        00000000        0001    0       0       100     00FFFFFF        0       0       0                                                                           
    derek@ubox:~/share/uspace$ cat /proc/net/tcp
      sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode                                                     
       0: 00000000:008B 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 18585 1 0000000000000000 100 0 0 10 0                     
       1: 0101007F:0035 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 15489 1 0000000000000000 100 0 0 10 0                     
       2: 00000000:0016 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 15871 1 0000000000000000 100 0 0 10 0                     
       3: 00000000:01BD 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 18584 1 0000000000000000 100 0 0 10 0                     
       4: BE1FA8C0:0016 EE1FA8C0:E56D 01 00000000:00000000 02:00086563 00000000     0        0 18726 3 0000000000000000 21 6 33 10 -1   

    7,文件系统

    derek@ubox:~/share/uspace$ cat /proc/fs/ext4/sda1/options 
    rw
    block_validity
    delalloc
    barrier
    user_xattr
    acl
    resuid=0
    resgid=0
    errors=remount-ro
    commit=5
    min_batch_time=0
    max_batch_time=15000
    stripe=0
    data=ordered
    inode_readahead_blks=32
    init_itable=10
    max_dir_size_kb=0
    derek@ubox:~/share/uspace$ df -h
    Filesystem      Size  Used Avail Use% Mounted on
    udev            477M     0  477M   0% /dev
    tmpfs           100M  3.7M   96M   4% /run
    /dev/sda1       125G  5.1G  114G   5% /
    tmpfs           497M  188K  496M   1% /dev/shm
    tmpfs           5.0M  4.0K  5.0M   1% /run/lock
    tmpfs           497M     0  497M   0% /sys/fs/cgroup
    tmpfs           100M   36K  100M   1% /run/user/108
    tmpfs           100M     0  100M   0% /run/user/1000
    derek@ubox:~/share/uspace$ mount
    sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
    proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
    udev on /dev type devtmpfs (rw,nosuid,relatime,size=487956k,nr_inodes=121989,mode=755)
    devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
    tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=101616k,mode=755)
    /dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
    securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
    tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
    tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
    tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
    cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
    pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
    cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
    cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
    cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
    cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
    cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
    cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
    cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
    cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
    cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
    cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
    systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
    debugfs on /sys/kernel/debug type debugfs (rw,relatime)
    hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
    mqueue on /dev/mqueue type mqueue (rw,relatime)
    fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
    tmpfs on /run/user/108 type tmpfs (rw,nosuid,nodev,relatime,size=101616k,mode=700,uid=108,gid=114)
    gvfsd-fuse on /run/user/108/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=108,group_id=114)
    tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=101616k,mode=700,uid=1000,gid=1000)
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  • 原文地址:https://www.cnblogs.com/soul-stone/p/6719705.html
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