aMule Forum
English => aMule Help => Topic started by: scudelari on August 09, 2005, 04:40:27 PM
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Hello all.
I've got an old computer (PII 233 with 128MB) and I'm using it as a server of everything possible. And, as it it the router of my house's network, I've installed amuled and I'm using amuleweb to control it, with SAMBA to access the files.
The problem is that, I don't know why, there are 3 aMuled running, and that's just killing my memory!!!
Here's a copy of what I can see with the top command, selecting only the user that runs amuled and amuleweb.
top - 13:20:31 up 11 days, 19:32, 1 user, load average: 0.12, 0.21, 0.72
Tasks: 67 total, 2 running, 65 sleeping, 0 stopped, 0 zombie
Cpu(s): 31.6% user, 3.6% system, 0.0% nice, 64.8% idle
Mem: 126544k total, 123196k used, 3348k free, 14580k buffers
Swap: 489940k total, 61120k used, 428820k free, 56944k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1296 usuario_ 12 0 28244 27m 6556 R 3.0 22.1 718:55.68 amuled
1309 usuario_ 9 0 10036 3020 2864 S 0.0 2.4 1:12.78 amuleweb
1308 usuario_ 17 0 10036 3020 2864 S 0.0 2.4 0:57.92 amuleweb
1307 usuario_ 9 0 28244 27m 6556 S 0.0 22.1 0:00.85 amuled
1306 usuario_ 9 0 10036 3020 2864 S 0.0 2.4 0:00.34 amuleweb
1304 usuario_ 9 0 28244 27m 6556 S 0.0 22.1 0:00.11 amuled
As you can see, there are 3 amuled and amuleweb. Each of those amuled processes are using 22.1 % of my memory!!! You can see also that there are only 3MB of memory remaining!
Is that a normal behavior of amuled, or did I do something studip?
Also, buying more memory would solve the problem? Or, if i do buy more memory, those amuled processes would keep greedly using 22.1% each?
If that's just as amuled should work, could anyone tell me why? I'm just curious :P
Thanks ;).
edit:
Added [code] tags for readability.
thedude0001
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Edit: Sorry, my fault. I didn't read properly.
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wuischke, I think you got it the wrong way round, he is actually asking why there are three such processes ;)
scudelari, it might be that this is all just one amuled running (and one amuleweb). There are versions of top that show all threads amule uses. What also strikes me is that #2 & 3 nearly have no cpu time at all. Could you please give me the output of 'ps -ef' and 'free -m'?
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Hello thedude0001, Thanks for the help ;)
as you requested:
Output from ps -ef:
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 Jul28 ? 00:00:08 init [3]
root 2 1 0 Jul28 ? 00:00:00 [keventd]
root 3 1 0 Jul28 ? 00:00:00 [ksoftirqd_CPU0]
root 4 1 0 Jul28 ? 00:01:32 [kswapd]
root 5 1 0 Jul28 ? 00:00:04 [bdflush]
root 6 1 0 Jul28 ? 00:00:20 [kupdated]
root 10 1 0 Jul28 ? 00:00:00 [mdrecoveryd]
root 11 1 0 Jul28 ? 00:00:00 [kreiserfsd]
root 63 1 0 Jul28 ? 00:00:17 /usr/sbin/syslogd
root 66 1 0 Jul28 ? 00:00:00 /usr/sbin/klogd -c 3 -x
root 114 1 0 Jul28 ? 00:00:00 udevd
root 274 1 0 Jul28 ? 00:00:00 [khubd]
root 1220 1 0 Jul28 ? 00:00:00 /usr/sbin/inetd
root 1232 1 0 Jul28 ? 00:00:00 /usr/sbin/crond -l10
root 1242 1 0 Jul28 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/run/mys
mysql 1263 1242 0 Jul28 ? 00:00:01 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1264 1263 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1265 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1266 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1267 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1268 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1269 1264 0 Jul28 ? 00:00:07 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1270 1264 0 Jul28 ? 00:00:11 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1271 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
mysql 1272 1264 0 Jul28 ? 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pi
root 1273 1 0 Jul28 ? 00:00:01 /usr/sbin/httpd
root 1280 1 0 Jul28 ? 00:00:01 /usr/sbin/smbd -D
root 1282 1280 0 Jul28 ? 00:00:00 /usr/sbin/smbd -D
root 1283 1 0 Jul28 ? 00:00:03 /usr/sbin/nmbd -D
root 1285 1 0 Jul28 ? 00:00:01 /usr/sbin/gpm -m /dev/mouse -t ps2
root 1289 1 0 Jul28 ? 00:00:00 dhcpcd eth0
root 1291 1 0 Jul28 ? 00:00:16 dhcpd eth1
1001 1296 1 4 Jul28 ? 12:27:22 amuled
root 1297 1 0 Jul28 tty1 00:00:00 /sbin/agetty 38400 tty1 linux
root 1298 1 0 Jul28 tty2 00:00:00 /sbin/agetty 38400 tty2 linux
root 1299 1 0 Jul28 tty3 00:00:00 /sbin/agetty 38400 tty3 linux
root 1300 1 0 Jul28 tty4 00:00:00 /sbin/agetty 38400 tty4 linux
root 1301 1 0 Jul28 tty5 00:00:00 /sbin/agetty 38400 tty5 linux
root 1302 1 0 Jul28 tty6 00:00:00 /sbin/agetty 38400 tty6 linux
1001 1304 1296 0 Jul28 ? 00:00:00 amuled
1001 1306 1296 0 Jul28 ? 00:00:00 amuleweb --amule-config-file=/home/usuario_hd/.aMule/amule.conf
1001 1307 1304 0 Jul28 ? 00:00:00 amuled
1001 1308 1306 0 Jul28 ? 00:00:57 amuleweb --amule-config-file=/home/usuario_hd/.aMule/amule.conf
1001 1309 1308 0 Jul28 ? 00:01:12 amuleweb --amule-config-file=/home/usuario_hd/.aMule/amule.conf
root 1829 1 0 Jul28 ? 00:00:46 /usr/sbin/sshd
nobody 15688 1220 0 Jul31 ? 00:00:00 in.identd
nobody 15689 15688 0 Jul31 ? 00:00:00 in.identd
nobody 15690 15689 0 Jul31 ? 00:00:00 in.identd
nobody 15691 15689 0 Jul31 ? 00:00:00 in.identd
nobody 15692 15689 0 Jul31 ? 00:00:00 in.identd
nobody 15693 15689 0 Jul31 ? 00:00:00 in.identd
nobody 15694 15689 0 Jul31 ? 00:00:00 in.identd
nobody 6803 1273 0 Jul31 ? 00:00:09 /usr/sbin/httpd
nobody 6804 1273 0 Jul31 ? 00:00:03 /usr/sbin/httpd
nobody 6805 1273 0 Jul31 ? 00:00:04 /usr/sbin/httpd
nobody 6806 1273 0 Jul31 ? 00:00:03 /usr/sbin/httpd
nobody 6807 1273 0 Jul31 ? 00:00:04 /usr/sbin/httpd
nobody 6842 1273 0 Jul31 ? 00:00:07 /usr/sbin/httpd
nobody 6845 1273 0 Jul31 ? 00:00:04 /usr/sbin/httpd
nobody 500 1273 0 Aug02 ? 00:00:00 /usr/sbin/httpd
nobody 4190 1273 0 Aug03 ? 00:00:02 /usr/sbin/httpd
nobody 4191 1273 0 Aug03 ? 00:00:00 /usr/sbin/httpd
1001 6372 1280 0 Aug09 ? 00:00:00 /usr/sbin/smbd -D
root 6624 1829 0 00:48 ? 00:00:00 sshd: root@pts/0
root 6627 6624 0 00:49 pts/0 00:00:00 -bash
root 6640 6627 0 00:49 pts/0 00:00:00 ps -ef
you can see that there are 3 amuled running.
and the output from free -m:
total used free shared buffers cached
Mem: 123 115 8 0 7 60
-/+ buffers/cache: 47 76
Swap: 478 59 418
you can see that I really have some memory problem. Only 8MB of free memory...
Please, note that I still haven't restarted my computer since the last post, so this is really what's going on.
And again the top response - an updated one - selecting only the user that runs amuled:
top - 00:59:08 up 12 days, 7:11, 1 user, load average: 0.32, 0.14, 0.04
Tasks: 66 total, 3 running, 63 sleeping, 0 stopped, 0 zombie
Cpu(s): 5.2% user, 1.6% system, 0.0% nice, 93.2% idle
Mem: 126544k total, 117520k used, 9024k free, 7456k buffers
Swap: 489940k total, 61236k used, 428704k free, 61316k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1296 usuario_ 14 0 28088 27m 6424 R 5.2 22.0 747:42.92 amuled
1304 usuario_ 8 0 28088 27m 6424 S 0.0 22.0 0:00.12 amuled
1306 usuario_ 9 0 10036 3020 2864 S 0.0 2.4 0:00.34 amuleweb
1307 usuario_ 9 0 28088 27m 6424 S 0.0 22.0 0:00.85 amuled
1308 usuario_ 8 0 10036 3020 2864 S 0.0 2.4 0:57.92 amuleweb
1309 usuario_ 9 0 10036 3020 2864 S 0.0 2.4 1:12.80 amuleweb
I though that it might be a way that amuled is coded. Perhaps it's process-oriented and not thread-oriented. But that would be kind of a nonsense, so I really don't think that it explains the problem I'm having. But it's the only think that would explain this strange behavior.
What I find curious is that all 3 processes uses almost the same amount of memory...
Waiting for you answer.
Thanks again.
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you start it amuled with some kind of script?
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take a look to ps --forest. You must be started several copies of amuled from badly written script. Each one in turn started amuleweb.
This way you have 3 amuled + 3 amuleweb. Enjoy !
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Hello stefanero and everyone else.
I'm using slackware 10.1, so, to start amuled with the system boot, I've just added the following line to the /etc/rc.d/rc.local file.
su - usuario_hd -c amuled -f &
I'm not an linux expert, but I belive that this line is only executed once per boot, after everything else. What makes me believe in this is that, in this file, I've also added the following line:
dhcpd eth1;
and there is only one running process for the dhcp server daemon...
And, lfroen, I've also executed the line you've suggested but, since I'm accessing the server using SSH, it really didn't help ;).
root@darkstar:~# ps --forest
PID TTY TIME CMD
7609 pts/0 00:00:00 bash
7698 pts/0 00:00:00 \_ ps
But, if you really think that executing this line would help in some kind, I could plug the monitor and the keyboard and then reboot the system... I've not made it yet because I'm not using a script to start amuled.
Thanks for the help, everyone. I hope we can fix this problem :)
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lfroen, I think you're wrong here, take a look at the PPID's. The second amuled is started by the first one and the third is started by the second. Same goes for the amuleweb processes. We've had reports on such behaviour of ps and top before, I just can't find them right now to back this up ;)
scrudelari, I can actually see that you don't have a memory problem. Linux uses unused memory as a cache to speed up disk access. That is why any ammount of RAM is shown as used after the computer is running for some time and has made some disk access. If more memory is needed by programs Linux reduces the cache. free is a program that can show you how much memory really is used, and it shows you so in the second line. If you only look at the memory used by programs there are 47 MB used and 76 MB free, so you're ok :)
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scrudelari: You don't need to plugin an monitor. Just try ps --forest -A
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Here you go, the response to ps --forest -A
PID TTY TIME CMD
1 ? 00:00:08 init
2 ? 00:00:00 keventd
3 ? 00:00:00 ksoftirqd_CPU0
4 ? 00:01:39 kswapd
5 ? 00:00:04 bdflush
6 ? 00:00:21 kupdated
10 ? 00:00:00 mdrecoveryd
11 ? 00:00:00 kreiserfsd
63 ? 00:00:17 syslogd
66 ? 00:00:00 klogd
114 ? 00:00:00 udevd
274 ? 00:00:00 khubd
1220 ? 00:00:00 inetd
15688 ? 00:00:00 \_ in.identd
15689 ? 00:00:00 \_ in.identd
15690 ? 00:00:00 \_ in.identd
15691 ? 00:00:00 \_ in.identd
15692 ? 00:00:00 \_ in.identd
15693 ? 00:00:00 \_ in.identd
15694 ? 00:00:00 \_ in.identd
1232 ? 00:00:00 crond
1242 ? 00:00:00 mysqld_safe
1263 ? 00:00:01 \_ mysqld
1264 ? 00:00:01 \_ mysqld
1265 ? 00:00:00 \_ mysqld
1266 ? 00:00:00 \_ mysqld
1267 ? 00:00:00 \_ mysqld
1268 ? 00:00:00 \_ mysqld
1269 ? 00:00:07 \_ mysqld
1270 ? 00:00:11 \_ mysqld
1271 ? 00:00:00 \_ mysqld
1272 ? 00:00:00 \_ mysqld
1273 ? 00:00:01 httpd
6803 ? 00:00:09 \_ httpd
6804 ? 00:00:03 \_ httpd
6805 ? 00:00:04 \_ httpd
6806 ? 00:00:03 \_ httpd
6807 ? 00:00:04 \_ httpd
6842 ? 00:00:07 \_ httpd
6845 ? 00:00:04 \_ httpd
500 ? 00:00:01 \_ httpd
4190 ? 00:00:02 \_ httpd
4191 ? 00:00:00 \_ httpd
1280 ? 00:00:01 smbd
1282 ? 00:00:00 \_ smbd
24402 ? 00:00:00 \_ smbd
24621 ? 00:00:02 \_ smbd
1283 ? 00:00:03 nmbd
1285 ? 00:00:01 gpm
1289 ? 00:00:00 dhcpcd
1291 ? 00:00:17 dhcpd
1296 ? 13:47:08 amuled
1304 ? 00:00:00 \_ amuled
1307 ? 00:00:00 | \_ amuled
1306 ? 00:00:00 \_ amuleweb
1308 ? 00:01:01 \_ amuleweb
1309 ? 00:01:16 \_ amuleweb
1297 tty1 00:00:00 agetty
1298 tty2 00:00:00 agetty
1299 tty3 00:00:00 agetty
1300 tty4 00:00:00 agetty
1301 tty5 00:00:00 agetty
1302 tty6 00:00:00 agetty
1829 ? 00:00:49 sshd
24646 ? 00:00:00 \_ sshd
24651 pts/0 00:00:00 \_ bash
24664 pts/0 00:00:00 \_ psso, I guess that the other amuleds are indeed beeing executed by the first amuled.
What should I do? These processes are using my memory and they are not running!
Please help me out guys... Don't give up ;)
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scrudelari, I can actually see that you don't have a memory problem. Linux uses unused memory as a cache to speed up disk access. That is why any ammount of RAM is shown as used after the computer is running for some time and has made some disk access. If more memory is needed by programs Linux reduces the cache. free is a program that can show you how much memory really is used, and it shows you so in the second line. If you only look at the memory used by programs there are 47 MB used and 76 MB free, so you're ok
If I understood dude right, you don't have any problems, it's just the better using of free memory Linux has.
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I know, I've read what he wrote. But that doesn't change the fact that I've got 2 process that are using 22.1% of my memory and aren't doing anything at all - since thet are sleeping.
That's what troubles me...
And, on the other hand, that doesn't explain why there are 3 amuled processes running, and not only 1.
Or is it normal to have 3 amuled process running?
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They are using probably the SAME memory than the runnign aMule, not 20% everyone.
It might be normal to have 3 amuled processes, depènds on the threads spawned.
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22% of your 128 MB RAM are 28 MB. If every process really used another 28 MB the three amuled processes alone would be using a total of 84 MB. free shows you that actually only 47MB are used, so I think Kry's explanation might be the right one... So I think everything is alright with you :)
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Ok, You've all convinced me.
Thanks everyone for the help, you all were very kind.
Thinking about this now makes me belive that indeed the 3 processes are using the SAME memory. It would be a damn of a coincidence if they were using different memory places and the same amount...
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Yup. I knew it since the start but felt lazy to reply