Unix pc sluggishness when switching windows (long)
Bruce Lilly
bruce at balilly.UUCP
Sat Feb 9 12:12:13 AEST 1991
In article <1991Feb7.161712.9239 at shibaya.lonestar.org> afc at shibaya.lonestar.org (Augustine Cano) writes:
>In article <979 at gnosys.svle.ma.us> gst at gnosys.svle.ma.us (Gary S. Trujillo) writes:
>>In <1991Feb5.040416.354 at shibaya.lonestar.org> afc at shibaya.lonestar.org (Augustine Cano) writes:
>>
>>> So, what is slowly degrading in the kernel that is fixed at boot time?
>>> Has anybody else noticed this? Does anybody have a clue as to what it is?
>>
>>Yup. It's a memory leak of some sort in the window manager. Do a "ps -el"
>>and take a look at the memory size numbers |
>> v
>> 1 S 0 17268 1 3 27 20 14d 18: 13 5af68 w4 2:36 wmgr
>>
>>I just killed and restarted wmgr recently, so not much memory has been
>>consumed so far (I've seen the first number as high as 80 or 90). Let's
>>see what I get if I kill and restart wmgr again:
>>
>> 1 S 0 20490 1 6 27 20 1e5 6: 12 5af68 w4 0:04 wmgr
>>
>>Maybe one of the UNIXpc development team out there who have access to
>>the source code of wmgr can take a look for us. I've just learned to
>>kill and restart wmgr every 2 or 3 days.
>
>This is not a leak, it's a FLOOD! I just hit the <SHIFT><RESUME> button
>24 times and that was enough to bump the memory size by 1.
Now hold on just a minute. While the above sounds plausible, I'm not 100%
convinced. I have 2 machines. The one I'm posting from has been up about
a month, switching windows is rapid, no phone manager running. Here's the
output from ps -elf: (oh yes: 3.5MB, Ethernet, combo card)
F S UID PID PPID C PRI NI ADR SZ:RSZ WCHAN STIME TTY TIME COMD
3 S root 0 0 0 0 20 4d 0: 0 264a8 Jan 11 ? 36267:18 swapper
1 S root 1 0 3 49 20 50 6: 6 70900 Jan 11 ? 5:50 init
3 S root 2 0 0 1 20 4e 48: 0 466ac Jan 11 ? 0:42 pagedaemon
3 S root 3 0 0 3 20 4f 0: 0 5377c Jan 11 ? 227:38 windaemon
1 S bruce 206 1 3 27 20 6e 38: 7 54e74 Jan 11 w1 1:35 ksh
1 S root 10908 1 3 27 20 399 6: 5 37ca1c 19:29:17 001 0:01 uugetty
1 S root 157 1 3 27 20 220169: 35 54f14 Jan 11 w3 52:11 wmgr
1 S root 161 1 3 49 20 2fc 29: 17 1ff3c Jan 11 w4 67:13 smgr
1 S root 4489 1 3 49 20 205 4: 0 70900 Feb 4 w5 0:01 .phclr
1 S root 75 1 3 26 20 297 3: 0 374a5a Jan 11 ? 0:01 timed
1 S root 58 1 3 26 20 252 10: 0 376f5a Jan 11 ? 0:00 telnetd
1 S root 60 1 3 26 20 25c 16: 0 376d5a Jan 11 ? 0:00 ftpd
1 S root 62 1 3 26 20 24e 8: 0 376bae Jan 11 ? 0:00 tftpd
1 S root 64 1 3 26 20 256 10: 0 376ada Jan 11 ? 0:00 rlogind
1 S root 66 1 3 26 20 2a2 10: 5 37662e Jan 11 ? 14:03 rwhod
1 S root 68 1 3 26 20 2ae 10: 0 37695a Jan 11 ? 0:01 rshd
1 S root 70 1 3 26 20 2b9 12: 0 3767da Jan 11 ? 0:00 fingerd
1 S root 72 1 3 26 20 2c4 10: 0 37655a Jan 11 ? 0:00 rexecd
1 S root 7870 1 3 26 20 3e4 42: 15 374f5a Feb 6 ? 1:36 sendmail
1 S root 77 1 3 26 20 2d1 22: 0 3761da Jan 11 ? 0:00 nntpd
1 S bruce 11002 10899 3 40 20 54 31: 9 46e8c 19:51:11 w8 0:04 ksh
1 S root 3979 1 3 27 20 3c0 35: 13 54ec4 Jan 14 w2 8:31 ksh
1 S uucp 8082 1 3 27 20 3f4 34: 0 55054 Feb 6 w7 0:04 ksh
1 S bin 29102 1 3 27 20 30c 35: 1 55004 Feb 1 w6 2:28 ksh
1 S bruce 10899 1 3 40 20 3d9 50: 29 4704c 19:26:07 w8 0:17 rn
1 S lp 177 1 3 26 20 354 8: 0 42662 Jan 11 ? 0:06 lpsched
1 R bruce 11011 11002 6 26 20 221 63: 20 19:51:26 w8 0:11 vi
1 Z bruce 11012 11011 13 73 20 <defunct>
1 S bruce 11013 11011 45 40 20 3e1 30: 7 4720c 19:54:06 w8 0:02 ksh
1 R bruce 11014 11013204 111 20 69 7: 11 19:54:09 w8 0:02 ps
Note the large numbers for size of wmgr.
My other machine has been up about the same amount of time, wmgr numbers are much
smaller, window switching is painfully slow, AND ph is running there (and
is pretty big also). Configuration is 2MB, Ethernet. Here's output from ps -elf there:
F S UID PID PPID C PRI NI ADR SZ:RSZ WCHAN STIME TTY TIME COMD
3 S root 0 0 0 0 20 53 0: 0 264a8 Jan 13 ? 35976:05 swapper
1 S root 1 0 7 49 20 56 6: 4 70900 Jan 13 ? 8:15 init
3 S root 2 0 0 1 20 54 48: 0 4d150 Jan 13 ? 1:27 pagedaemon
3 S root 3 0 0 3 20 55 0: 0 5977c Jan 13 ? 85:47 windaemon
1 S bruce 275 1 7 27 20 74 33: 0 5ae74 Jan 13 w1 0:27 ksh
1 S root 260 1 7 27 20 1e0 81: 12 5b004 Jan 13 w6 15:40 ph
1 S root 234 1 7 27 20 a5 60: 0 5af14 Jan 13 w3 16:52 wmgr
1 S root 238 1 7 49 20 128 49: 4 1ff3c Jan 13 w4 66:51 smgr
1 S root 8833 75 11 26 20 177 11: 6 3786e0 19:56:41 ? 0:00 rshd
1 S root 82 1 3 26 20 d7 3: 0 37cbda Jan 13 ? 0:01 timed
1 S root 65 1 3 26 20 d8 10: 0 37df5a Jan 13 ? 0:00 telnetd
1 S root 67 1 3 26 20 f2 16: 0 37dd5a Jan 13 ? 0:00 ftpd
1 S root 69 1 3 26 20 dd 8: 0 37dbae Jan 13 ? 0:00 tftpd
1 S root 71 1 3 26 20 11a 10: 0 37dada Jan 13 ? 0:01 rlogind
1 S root 73 1 7 26 20 131 10: 5 37d7ae Jan 13 ? 15:59 rwhod
1 S root 75 1 7 26 20 134 10: 5 37d95a Jan 13 ? 0:14 rshd
1 S root 77 1 3 26 20 13f 12: 0 37d6da Jan 13 ? 0:00 fingerd
1 S root 79 1 3 26 20 14a 10: 0 37d55a Jan 13 ? 0:00 rexecd
1 S root 88 1 7 26 20 151 41: 7 37d0da Jan 13 ? 14:17 sendmail
1 S root 84 1 7 26 20 157 22: 8 37d1da Jan 13 ? 0:05 nntpd
1 S root 314 1 7 27 20 1e2 33: 0 5aec4 Jan 13 w2 2:52 ksh
1 S lp 243 1 7 26 20 186 8: 0 4904a Jan 13 ? 0:06 lpsched
1 S root 8762 84 7 26 20 150 31: 15 37c92e 19:26:26 ? 0:05 nntpd
1 S bruce 8834 8833 13 40 20 b2 22: 4 4da80 19:56:42 ? 0:00 sh
1 R bruce 8835 8834175 103 20 8e 7: 11 19:56:43 ? 0:03 ps
1 S root 26795 1 7 27 20 123 31: 14 5b054 Feb 3 w7 8:54 watch
1 S bin 23327 1 7 27 20 71 33: 0 5b0f4 Feb 1 w9 0:15 ksh
1 S root 1234 1 8 27 20 18b 31: 6 5b0a4 Feb 5 w8 52:54 watch
I just walked into the other room, killed ph, checked window switching
(much, much better), restarted ph, rechecked window switching speed (still
good). More ps -elf output:
F S UID PID PPID C PRI NI ADR SZ:RSZ WCHAN STIME TTY TIME COMD
3 S root 0 0 0 0 20 53 0: 0 264a8 Jan 13 ? 35981:59 swapper
1 S root 1 0 7 49 20 56 6: 4 70900 Jan 13 ? 8:15 init
3 S root 2 0 0 1 20 54 48: 0 4d150 Jan 13 ? 1:27 pagedaemon
3 S root 3 0 0 3 20 55 0: 0 5977c Jan 13 ? 85:48 windaemon
1 S bruce 275 1 7 27 20 74 33: 0 5ae74 Jan 13 w1 0:27 ksh
1 S root 8853 75 9 26 20 148 11: 6 3786e0 20:03:04 ? 0:00 rshd
1 S root 234 1 7 27 20 a5 61: 56 5af14 Jan 13 w3 17:06 wmgr
1 S root 238 1 7 49 20 128 49: 3 1ff3c Jan 13 w4 66:52 smgr
1 S adm 8845 8842 0 49 20 1db 3: 0 70900 20:00:05 w4 0:00 sa1
1 S root 82 1 3 26 20 d7 3: 0 37cbda Jan 13 ? 0:01 timed
1 S root 65 1 3 26 20 d8 10: 0 37df5a Jan 13 ? 0:00 telnetd
1 S root 67 1 3 26 20 f2 16: 0 37dd5a Jan 13 ? 0:00 ftpd
1 S root 69 1 3 26 20 dd 8: 0 37dbae Jan 13 ? 0:00 tftpd
1 S root 71 1 3 26 20 11a 10: 0 37dada Jan 13 ? 0:01 rlogind
1 S root 73 1 7 26 20 131 10: 5 37d7ae Jan 13 ? 15:59 rwhod
1 S root 75 1 7 26 20 134 10: 4 37d95a Jan 13 ? 0:14 rshd
1 S root 77 1 3 26 20 13f 12: 0 37d6da Jan 13 ? 0:00 fingerd
1 S root 79 1 3 26 20 14a 10: 0 37d55a Jan 13 ? 0:00 rexecd
1 S root 88 1 7 26 20 151 41: 0 37d0da Jan 13 ? 14:17 sendmail
1 S root 84 1 7 26 20 157 22: 0 37d1da Jan 13 ? 0:05 nntpd
1 S root 314 1 7 27 20 1e2 33: 7 5aec4 Jan 13 w2 2:52 ksh
1 S lp 243 1 7 26 20 186 8: 0 4904a Jan 13 ? 0:06 lpsched
1 S root 8762 84 7 26 20 150 31: 1 37c92e 19:26:26 ? 0:05 nntpd
1 S root 8848 1 7 27 20 19a 79: 19 5afb4 20:01:01 sys 0:00 ph
1 S root 8842 1 7 40 20 d6 22: 0 4daf0 20:00:01 w4 0:00 sh
1 S root 26795 1 7 27 20 123 31: 10 5b054 Feb 3 w7 8:55 watch
1 S bin 23327 1 7 27 20 71 33: 0 5b0f4 Feb 1 w9 0:15 ksh
1 S root 1234 1 7 27 20 18b 31: 6 5b0a4 Feb 5 w8 52:54 watch
1 S bruce 8854 8853 12 40 20 1e5 22: 4 4dcb0 20:03:05 ? 0:00 sh
1 R bruce 8855 8854173 103 20 1d9 7: 11 20:03:05 ? 0:03 ps
ph size is still the largest, wmgr size went up, BUT window switching is
faster. I still can't say exactly what the slow window switching is
caused by, but the above simple experiment seems to suggest that it's
not solely due to the size of the wmgr process. It might be some
interaction with the phone manager (which has an annoying tendency to
pop open a window everytime the phone rings), then again it might not
be. I just don't know.
--
Bruce Lilly blilly!balilly!bruce at sonyd1.Broadcast.Sony.COM
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