Difference between revisions of "HowTo Read ProcFS"

Revision as of 09:02, 3 April 2009 (view source) Jze (Talk | contribs) m (category) ← Older edit		Latest revision as of 22:48, 21 October 2011 (view source) Glenn (Talk | contribs) (+{{Languages|HowTo Read ProcFS}})
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		+	{{Languages|HowTo Read ProcFS}}
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	==Information in /proc/virtual==		==Information in /proc/virtual==
	/proc/virtual		/proc/virtual
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	====/proc/virtual/<xid>/cvirt ====		====/proc/virtual/<xid>/cvirt ====
−	BiasUptime:    49.73	+	BiasUptime:    16.87
−	SysName:        Linux	+	nr_threads:    119
−	NodeName:      XXXX.test.org	+
−	Release:        2.6.11-rc5	+
−	Version:        #12 Sun Feb 27 01:07:29 CET 2005	+
−	Machine:        i686	+
−	DomainName:	+
−	nr_threads:    16	+
	nr_running:    0		nr_running:    0
	nr_unintr:      0		nr_unintr:      0
	nr_onhold:      0		nr_onhold:      0
−	load_updates:  14585	+	load_updates:  383736593
−	loadavg:        0.00 0.00 0.00	+	loadavg:        0.00 0.02 0.02
−	total_forks:    272	+	total_forks:    3763748
		+
		+	this contains the uptime bias, the number of threads, thread stats (running, uninterruptible, on hold), the number of load updates, the load averages (1,5,15) and the number of forks
		+
		+	==== /proc/virtual/<xid>/nsproxy ====
		+	NSProxy:        f7d7a4f0 [f7c91280,f783e200,f7824dc0]
		+	Namespace:      f7c91280 [#3]
		+	RootPath:      /
		+	SysName:        Linux
		+	NodeName:      XXXX.test.org
		+	Release:        2.6.26-1-vserver-686
		+	Version:        #1 SMP Sat Jan 10 21:26:14 UTC 2009
		+	Machine:        i686
		+	DomainName:    (none)
		+	SEMS:          250 32000 32 128  123
		+	MSG:            8192 16384 145
		+	SHM:            33554432 2097152  4096 2556
		+
		+	This contains the utsname settings (sys, node, rel, vers, machine, domain)
−	this contains the uptime bias, utsname settings (sys, node, rel, vers, machine, domain), the number of threads, thread stats (running, uninterruptible, on hold), the number of load updates, the load averages (1,5,15) and the number of forks
	==== /proc/virtual/<xid>/limit  ====		==== /proc/virtual/<xid>/limit  ====

---

Latest revision as of 22:48, 21 October 2011

Contents 1 Information in /proc/virtual 1.1 /proc/virtual/info 1.2 /proc/virtual/<xid> 1.2.1 /proc/virtual/<xid>/info 1.2.2 /proc/virtual/<xid>/status 1.2.3 /proc/virtual/<xid>/sched 1.2.4 /proc/virtual/<xid>/cacct 1.2.5 /proc/virtual/<xid>/cvirt 1.2.6 /proc/virtual/<xid>/nsproxy 1.2.7 /proc/virtual/<xid>/limit 2 Debug settings in /proc/sys/vserver 2.1 /proc/sys/vserver/debug_switch 2.2 /proc/sys/vserver/debug_xid 2.3 /proc/sys/vserver/debug_cvirt 2.4 /proc/sys/vserver/debug_limit 2.5 /proc/sys/vserver/debug_dlim 2.6 /proc/sys/vserver/debug_nid 2.7 /proc/sys/vserver/debug_net

[edit] Information in /proc/virtual

  /proc/virtual
    .../info

  /proc/virtual/<pid>
    .../info
    .../status
    .../sched
    .../cvirt
    .../cacct
    .../limit

[edit] /proc/virtual/info

[edit] /proc/virtual/<xid>

This directory contains several files which can provide valuable information on the current context state and settings.

[edit] /proc/virtual/<xid>/info

ID:     1001
Info:   83c37000
Init:   0

this shows the context id, vx_info location and init pid

[edit] /proc/virtual/<xid>/status

UseCnt: 38
Tasks:  16
Flags:  0000000000000000
BCaps:  00000000d46c04ff
CCaps:  0000000000000000
Ticks:  0

this contains the usage count (references) and task count, as well as the context flags, capability boundary and context capabilities

[edit] /proc/virtual/<xid>/sched

Token:                 0
FillRate:              1
Interval:              4
TokensMin:             6
TokensMax:            50
PrioBias:              0
VaVaVoom:              0
cpu 0: 0 0 0

shows the current amount of tokens, scheduler parameters (fill rate, interval, min/max), the priority bias and the calculated vavavoom (priority bonus)

[edit] /proc/virtual/<xid>/cacct

UNSPEC:            0/0                             0/0                             0/0           
UNIX:             35/2375                         35/2375                          0/0           
INET:             12/531                          56/1937                         57/1705        
INET6:             0/0                             0/0                             0/0           
OTHER:             0/0                             0/0                             0/0           
forks:  0

this accounts socket messages for the listed protocols, as incoming messages/bytes and outgoing messages/bytes

[edit] /proc/virtual/<xid>/cvirt

BiasUptime:     16.87
nr_threads:     119
nr_running:     0
nr_unintr:      0
nr_onhold:      0
load_updates:   383736593
loadavg:        0.00 0.02 0.02
total_forks:    3763748

this contains the uptime bias, the number of threads, thread stats (running, uninterruptible, on hold), the number of load updates, the load averages (1,5,15) and the number of forks

[edit] /proc/virtual/<xid>/nsproxy

NSProxy:        f7d7a4f0 [f7c91280,f783e200,f7824dc0]
Namespace:      f7c91280 [#3]
RootPath:       /
SysName:        Linux
NodeName:       XXXX.test.org
Release:        2.6.26-1-vserver-686
Version:        #1 SMP Sat Jan 10 21:26:14 UTC 2009
Machine:        i686
DomainName:     (none)
SEMS:           250 32000 32 128  123
MSG:            8192 16384 145
SHM:            33554432 2097152  4096 2556

This contains the utsname settings (sys, node, rel, vers, machine, domain)

[edit] /proc/virtual/<xid>/limit

PROC:           16              17              -1           0
VM:          14440           15331              -1           0
VML:             0               0              -1           0
RSS:          5478            5847              -1           0
ANON:         1516            1516              -1           0
FILES:         140             155              -1           0
OFD:           122             122              -1           0
LOCKS:           1               3              -1           0
SOCK:            9               9              -1           0
MSGQ:            0               0              -1           0
SHM:             0               0              -1           0

limit columns are:

1. current
2. max observed
3. limit
4. number of hits

limit rows are:

• processes,
• virtual memory,
• locked memory,
• resident set size,
• anonymous memory,
• number of files,
• filedescriptors,
• locks,
• sockets,
• message queues,
• shared memory

[edit] Debug settings in /proc/sys/vserver

  /proc/sys/vserver
    .../debug_switch
    .../debug_xid
    .../debug_cvirt
    .../debug_limit
    .../debug_dlim
    .../debug_nid
    .../debug_net

[edit] /proc/sys/vserver/debug_switch

[edit] /proc/sys/vserver/debug_xid

[edit] /proc/sys/vserver/debug_cvirt

[edit] /proc/sys/vserver/debug_limit

[edit] /proc/sys/vserver/debug_dlim

[edit] /proc/sys/vserver/debug_nid

[edit] /proc/sys/vserver/debug_net