pstat

Description:

pstat is a group of process performance monitoring tools that build upon the capabilities of yapfr. The tools are:

pstat - A curses based, process monitoring tool that constantly monitors a running process.
getenv - List (on stdout) the environmental variables known to a process.
listfiles - List (to stdout) all files open by a process.
listmem - List (on stdout) the various memory regions of a process.
procsock - List (on stdout) the sockets in use by a process.
childrenof - List (on stdout) all processes that claim this as a parent.
groupof - Find the process group leader and list (on stdout) all members of that process group.

The man page for these tools (converted to PDF) can be found here.

The Distribution:

The latest version of pstat is still develpment code.

Development: pstat-0_24_0.tar.gz

Some notes on this code:

The code is still not quite as mature as code from yapfr but is very near release quality.
The way to negate this immaturity is that I have turned off features that I have deemed not quite ready. They can be reenabled by changing compiler options in the tunables.h file.
Despite this, all code is definitely usable.
Detailed descriptions of progress of the development can be found in the version.h file in the distribution.
The code has been tested with 2.6 kernels and no issues have been found although none of the new features (files) in /proc/PID/ are used.

This code is released under the GPL.

Application Notes:

Non root users cannot view other users processes. For this reason, pstat is probably best installed and run as root.
When a process name is passed as the parameter to pstat (instead of the process ID), pstat will run against the first match it finds. If you want to monitor a specific process (or thread) then you need to specify the pid (number) instead of the name of the process.
If the process does not (yet) exist when pstat is run, a "-w" switch can be used to wait for a matching process to start.

Screen shots (dumps):

PID: 30177    PPID: 30107    Children: 0     State: R (running)
Nice: 0    Priority: 15    High [...............P....N...................] Low
Command Line: ./pstat
CWD: /proj/pstat                     Root: / 
Executable: /proj/pstat/pstat                       
Size: 2856 K Resident Set Size:  916 K Shared Libraries: 1712 K
Files Total: 4     Regular: 0      Pipes: 0    Block Devices: 4    
Directories: 1    Symlinks: 3    Sockets: 1     Char Devices: 3    
Major Faults: 0     Total: 229        Minor Faults: 40    Total: 1105       
Reaped Children Maj Flts: 0           Reaped Children Min Flts: 0
User CPU: 1     Total: 25             System CPU: 0     Total: 2          
Reaped Children User CPU: 0           Reaped Children System CPU: 0
%CPU  3.2%    [U                                                           ]
%Mem  0.2%    [======================================================      ]
UID   : root         EUID: root          SUID: root         FSUID: root     
GID   : root         EGID: root          SGID: root         FSGID: root     
pstat version: 0.14.1   Current Time: Sun Dec 14 14:51:40 2003

This is pstat running against itself.

[root@london pstat]# ./listfiles sendmail
crw-rw-rw- root     root     0 -> /dev/null
crw-rw-rw- root     root     1 -> /dev/null
crw-rw-rw- root     root     2 -> /dev/null
drwxrwxrwx root     root     3 -> socket:[2202]
drwxrwxrwx root     root     4 -> socket:[2203]
[root@london pstat]# ./procsock sendmail
2202:       
2203:       TCP:  127.0.0.1:25   -- 0.0.0.0:0    LISTENING   
[root@london pstat]# ./listmem sendmail
[  303 P][1212 K] 00e80000-00faf000 r-xp 00000000 03:03 324546     /lib/tls/libc-2.3.2.so
[    4 P][  16 K] 00faf000-00fb3000 rw-p 0012e000 03:03 324546     /lib/tls/libc-2.3.2.so
[    2 P][8192 B] 00fb3000-00fb5000 rw-p 00000000 00:00 0 
[  159 P][ 636 K] 08048000-080e7000 r-xp 00000000 03:03 717166     /usr/sbin/sendmail.sendmail
[    3 P][  12 K] 080e7000-080ea000 rw-p 0009f000 03:03 717166     /usr/sbin/sendmail.sendmail
[  100 P][ 400 K] 080ea000-0814e000 rwxp 00000000 00:00 0 
[   21 P][  84 K] 40000000-40015000 r-xp 00000000 03:03 324492     /lib/ld-2.3.2.so
[    1 P][4096 B] 40015000-40016000 rw-p 00015000 03:03 324492     /lib/ld-2.3.2.so
[    3 P][  12 K] 40016000-40019000 r-xp 00000000 03:03 748697     /usr/lib/sasl2/libanonymous.so.2.0.15
[    1 P][4096 B] 40019000-4001a000 rw-p 00002000 03:03 748697     /usr/lib/sasl2/libanonymous.so.2.0.15
[    4 P][  16 K] 4001a000-4001e000 r-xp 00000000 03:03 748701     /usr/lib/sasl2/libsasldb.so.2.0.15
[    1 P][4096 B] 4001e000-4001f000 rw-p 00003000 03:03 748701     /usr/lib/sasl2/libsasldb.so.2.0.15
[    4 P][  16 K] 4001f000-40023000 r-xp 00000000 03:03 748743     /usr/lib/sasl2/libcrammd5.so.2.0.15
[    1 P][4096 B] 40023000-40024000 rw-p 00003000 03:03 748743     /usr/lib/sasl2/libcrammd5.so.2.0.15
[    1 P][4096 B] 40025000-40026000 rw-p 00000000 00:00 0 
[  192 P][ 768 K] 40026000-400e6000 r-xp 00000000 03:03 324576     /lib/libdb-4.1.so
[    2 P][8192 B] 400e6000-400e8000 rw-p 000bf000 03:03 324576     /lib/libdb-4.1.so
[   15 P][  60 K] 400e8000-400f7000 r-xp 00000000 03:03 324537     /lib/libresolv-2.3.2.so
[    1 P][4096 B] 400f7000-400f8000 rw-p 0000f000 03:03 324537     /lib/libresolv-2.3.2.so
[    2 P][8192 B] 400f8000-400fa000 rw-p 00000000 00:00 0 
[    5 P][  20 K] 400fa000-400ff000 r-xp 00000000 03:03 324503     /lib/libcrypt-2.3.2.so
[    1 P][4096 B] 400ff000-40100000 rw-p 00004000 03:03 324503     /lib/libcrypt-2.3.2.so
[   39 P][ 156 K] 40100000-40127000 rw-p 00000000 00:00 0 
[   18 P][  72 K] 40127000-40139000 r-xp 00000000 03:03 324509     /lib/libnsl-2.3.2.so
[    1 P][4096 B] 40139000-4013a000 rw-p 00011000 03:03 324509     /lib/libnsl-2.3.2.so
[    2 P][8192 B] 4013a000-4013c000 rw-p 00000000 00:00 0 
[    7 P][  28 K] 4013c000-40143000 r-xp 00000000 03:03 716844     /usr/lib/libwrap.so.0.7.6
[    1 P][4096 B] 40143000-40144000 rw-p 00006000 03:03 716844     /usr/lib/libwrap.so.0.7.6
[    1 P][4096 B] 40144000-40145000 rw-p 00000000 00:00 0 
[   49 P][ 196 K] 40145000-40176000 r-xp 00000000 03:03 716720     /usr/lib/libldap.so.2.0.122
[    1 P][4096 B] 40176000-40177000 rw-p 00030000 03:03 716720     /usr/lib/libldap.so.2.0.122
[    1 P][4096 B] 40177000-40178000 rw-p 00000000 00:00 0 
[   11 P][  44 K] 40178000-40183000 r-xp 00000000 03:03 716718     /usr/lib/liblber.so.2.0.122
[    1 P][4096 B] 40183000-40184000 rw-p 0000b000 03:03 716718     /usr/lib/liblber.so.2.0.122
[   18 P][  72 K] 40184000-40196000 r-xp 00000000 03:03 716710     /usr/lib/libsasl2.so.2.0.15
[    1 P][4096 B] 40196000-40197000 rw-p 00012000 03:03 716710     /usr/lib/libsasl2.so.2.0.15
[   50 P][ 200 K] 40197000-401c9000 r-xp 00000000 03:03 324585     /lib/libssl.so.0.9.7a
[    3 P][  12 K] 401c9000-401cc000 rw-p 00032000 03:03 324585     /lib/libssl.so.0.9.7a
[  220 P][ 880 K] 401cc000-402a8000 r-xp 00000000 03:03 324584     /lib/libcrypto.so.0.9.7a
[   18 P][  72 K] 402a8000-402ba000 rw-p 000db000 03:03 324584     /lib/libcrypto.so.0.9.7a
[    3 P][  12 K] 402ba000-402bd000 rw-p 00000000 00:00 0 
[    3 P][  12 K] 402bd000-402c0000 r-xp 00000000 03:03 716779     /usr/lib/libhesiod.so.0
[    1 P][4096 B] 402c0000-402c1000 rw-p 00003000 03:03 716779     /usr/lib/libhesiod.so.0
[    1 P][4096 B] 402c1000-402c2000 rw-p 00000000 00:00 0 
[   14 P][  56 K] 402c2000-402d0000 r-xp 00000000 03:03 324550     /lib/tls/libpthread-0.48.so
[    1 P][4096 B] 402d0000-402d1000 rw-p 0000d000 03:03 324550     /lib/tls/libpthread-0.48.so
[    2 P][8192 B] 402d1000-402d3000 rw-p 00000000 00:00 0 
[    3 P][  12 K] 402d3000-402d6000 r-xp 00000000 03:03 324505     /lib/libdl-2.3.2.so
[    1 P][4096 B] 402d6000-402d7000 rw-p 00002000 03:03 324505     /lib/libdl-2.3.2.so
[   18 P][  72 K] 402d7000-402e9000 r-xp 00000000 03:03 746502     /usr/kerberos/lib/libgssapi_krb5.so.2.2
[    1 P][4096 B] 402e9000-402ea000 rw-p 00011000 03:03 746502     /usr/kerberos/lib/libgssapi_krb5.so.2.2
[   92 P][ 368 K] 402ea000-40346000 r-xp 00000000 03:03 746516     /usr/kerberos/lib/libkrb5.so.3.1
[    2 P][8192 B] 40346000-40348000 rw-p 0005c000 03:03 746516     /usr/kerberos/lib/libkrb5.so.3.1
[   15 P][  60 K] 40348000-40357000 r-xp 00000000 03:03 746506     /usr/kerberos/lib/libk5crypto.so.3.0
[    1 P][4096 B] 40357000-40358000 rw-p 0000f000 03:03 746506     /usr/kerberos/lib/libk5crypto.so.3.0
[    1 P][4096 B] 40358000-40359000 rw-p 00000000 00:00 0 
[    1 P][4096 B] 40359000-4035a000 r-xp 00000000 03:03 746496     /usr/kerberos/lib/libcom_err.so.3.0
[    1 P][4096 B] 4035a000-4035b000 rw-p 00001000 03:03 746496     /usr/kerberos/lib/libcom_err.so.3.0
[   12 P][  48 K] 4035b000-40367000 r-xp 00000000 03:03 716533     /usr/lib/libz.so.1.1.4
[    2 P][8192 B] 40367000-40369000 rw-p 0000b000 03:03 716533     /usr/lib/libz.so.1.1.4
[    1 P][4096 B] 40369000-4036a000 rw-p 00000000 00:00 0 
[   10 P][  40 K] 4036a000-40374000 r-xp 00000000 03:03 324525     /lib/libnss_files-2.3.2.so
[    1 P][4096 B] 40374000-40375000 rw-p 0000a000 03:03 324525     /lib/libnss_files-2.3.2.so
[   11 P][  44 K] 40375000-40380000 r-xp 00000000 03:03 748747     /usr/lib/sasl2/libdigestmd5.so.2.0.15
[    1 P][4096 B] 40380000-40381000 rw-p 0000a000 03:03 748747     /usr/lib/sasl2/libdigestmd5.so.2.0.15
[    3 P][  12 K] 40381000-40384000 r-xp 00000000 03:03 749007     /usr/lib/sasl2/liblogin.so.2.0.15
[    1 P][4096 B] 40384000-40385000 rw-p 00002000 03:03 749007     /usr/lib/sasl2/liblogin.so.2.0.15
[    3 P][  12 K] 40385000-40388000 r-xp 00000000 03:03 749011     /usr/lib/sasl2/libplain.so.2.0.15
[    1 P][4096 B] 40388000-40389000 rw-p 00002000 03:03 749011     /usr/lib/sasl2/libplain.so.2.0.15
[   50 P][ 200 K] bffce000-c0000000 rwxp fffcf000 00:00 0 
[root@london pstat]#

This is some of the other utilities running against sendmail.