Author Topic: What memory should have an MD (Read 10702 times)

archived · « **on:** December 27, 2006, 02:29:34 pm »

Hi,

I've just installed my media director.
It's a diskless 1GB Sempron machine.
But I'm having problems with memory. Some processes are coredumped because of out of memory.

I checked and (although I don't have any MCE card installed on the MD) the mythbackend is running (150mb).
Also I saw that, while matching a movie, the orbiter is still running (287mb)

Is this all normal?
What are your experiences regarding memory usage?

Thanks

Chr

archived · « **Reply #1 on:** January 03, 2007, 04:43:05 pm »

Quote from: "cmorant"

Hi,

I've just installed my media director.
It's a diskless 1GB Sempron machine.
But I'm having problems with memory. Some processes are coredumped because of out of memory.

I checked and (although I don't have any MCE card installed on the MD) the mythbackend is running (150mb).
Also I saw that, while matching a movie, the orbiter is still running (287mb)

Is this all normal?
What are your experiences regarding memory usage?

Thanks

Chr

All our MD's have 512mb of RAM... which seems more than adequate currently.

Andrew

archived · « **Reply #2 on:** January 03, 2007, 06:31:39 pm »

Are your MDs diskless?

Christian

archived · « **Reply #3 on:** January 03, 2007, 08:43:50 pm »

Quote from: "cmorant"

Are your MDs diskless?

Christian

Yes they are. We have never used anything but diskless MD's. We are using 855/915/945/ and Via based motherboards all have 512mb of ram as standard and our Cores have 1 to 2gb

archived · « **Reply #4 on:** January 08, 2007, 11:05:42 am »

Thanks,

Since my MD uses integrated video, 512MB is far too short. But even with 1GB I had some coredumps. When I checked, the memory was really low (< 20MB) sometimes.

Is it normal that an MD has a mythbackend running even though it does not have any capture card configured?

It could same some memory, some boot time and a little CPU.

Just my two cents...

Christian

archived · « **Reply #5 on:** January 08, 2007, 11:53:51 am »

Quote from: "cmorant"

Thanks,

Since my MD uses integrated video, 512MB is far too short. But even with 1GB I had some coredumps. When I checked, the memory was really low (< 20MB) sometimes.

Is it normal that an MD has a mythbackend running even though it does not have any capture card configured?

It could same some memory, some boot time and a little CPU.

Just my two cents...

Christian

Hi Christian,

Several of our MD's have integrated Intel or Via video but still run fine with 512gb of memory. But your motherboard/config may necessitate more memory I guess.

We don't use Myth here but my understanding is that the Mythbackend should only be running on the Core or Hybrid and not on MD's. Make sure that Myth is turned off for each MD in Web Admin->Wizards->Media Directors. Then do a reload router and a full regen and then see if Mythbackend is running.

Andrew

archived · « **Reply #6 on:** January 08, 2007, 06:11:36 pm »

Hi Andrew,

Mobo: ASRockAlive NF4G - DVI (Nforce4 - Integrated Geforce 6100)
Tried with 512 MB but had to get more to avoid many crashes.

> We don't use Myth here but my understanding is that the Mythbackend > should only be running on the Core or Hybrid and not on MD's

Sounds logical

>Make sure that Myth is turned off for each MD in Web Admin->Wizards->Media Directors.

Done, (I suppose you mean "PVR Capture Card" set to "None") anyway, the MD never was configured for a PVR card.

>Then do a reload router and a full regen and then see if Mythbackend is >running.

I suppose you mean a "Full regen all" of the orbiters as I didn't find any other full regen. I alos did a rebuild image of the MD first.

And...

See for youself.

moon19:/etc# ps fax | grep -i myth
7647 ? Ss 0:00 SCREEN -d -m -h 3000 -S MythTV_Player_26 /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7664 pts/8 Ss+ 0:00 \_ /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7822 pts/8 S+ 0:00 \_ /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7823 pts/8 S+ 0:00 | \_ tee -a /var/log/pluto/26_MythTV_Player.log
3109 pts/8 S+ 0:00 \_ ./MythTV_Player -d 26 -r 192.168.1.129
9119 ? Ss 0:00 SCREEN -d -m -S BkgSS-Restart_MythBackend.sh /usr/pluto/bin/Restart_MythBackend.sh
9136 pts/13 Ss+ 0:00 \_ /bin/bash /usr/pluto/bin/Restart_MythBackend.sh
8851 pts/15 S+ 0:00 \_ grep -i myth
15208 ? Ss 0:00 /usr/bin/mythbackend --daemon --logfile /var/log/mythtv/mythbackend.log --pidfile /var/run/mythtv/mythbackend.pid
moon19:/etc#

Sorry for the poor layout of the "ps"

Also here:

moon19:/etc# ls -l /etc/rc3.d/S24mythtv-backend
lrwxrwxrwx 1 root root 24 Jan 2 23:23 /etc/rc3.d/S24mythtv-backend -> ../init.d/mythtv-backend

Regards,

Christian

archived · « **Reply #7 on:** January 08, 2007, 08:43:32 pm »

Quote from: "cmorant"

Hi Andrew,

Mobo: ASRockAlive NF4G - DVI (Nforce4 - Integrated Geforce 6100)
Tried with 512 MB but had to get more to avoid many crashes.

> We don't use Myth here but my understanding is that the Mythbackend > should only be running on the Core or Hybrid and not on MD's

Sounds logical

>Make sure that Myth is turned off for each MD in Web Admin->Wizards->Media Directors.

Done, (I suppose you mean "PVR Capture Card" set to "None") anyway, the MD never was configured for a PVR card.

Christian

**To disable Myth on a given MD you need to use the Software Modules 'Edit' button for the MD in question. This will display a new window where you can un-check 'Myth' for that MD.

Quote from: "cmorant"

>Then do a reload router and a full regen and then see if Mythbackend is >running.

I suppose you mean a "Full regen all" of the orbiters as I didn't find any other full regen. I alos did a rebuild image of the MD first.

And...

See for youself.

moon19:/etc# ps fax | grep -i myth
7647 ? Ss 0:00 SCREEN -d -m -h 3000 -S MythTV_Player_26 /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7664 pts/8 Ss+ 0:00 \_ /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7822 pts/8 S+ 0:00 \_ /bin/bash -x Spawn_Device.sh 26 192.168.1.129 MythTV_Player
7823 pts/8 S+ 0:00 | \_ tee -a /var/log/pluto/26_MythTV_Player.log
3109 pts/8 S+ 0:00 \_ ./MythTV_Player -d 26 -r 192.168.1.129
9119 ? Ss 0:00 SCREEN -d -m -S BkgSS-Restart_MythBackend.sh /usr/pluto/bin/Restart_MythBackend.sh
9136 pts/13 Ss+ 0:00 \_ /bin/bash /usr/pluto/bin/Restart_MythBackend.sh
8851 pts/15 S+ 0:00 \_ grep -i myth
15208 ? Ss 0:00 /usr/bin/mythbackend --daemon --logfile /var/log/mythtv/mythbackend.log --pidfile /var/run/mythtv/mythbackend.pid
moon19:/etc#

Sorry for the poor layout of the "ps"

Also here:

moon19:/etc# ls -l /etc/rc3.d/S24mythtv-backend
lrwxrwxrwx 1 root root 24 Jan 2 23:23 /etc/rc3.d/S24mythtv-backend -> ../init.d/mythtv-backend

Regards,

Christian

I can't access a Core with an attached MD just now but will check this tomorrow an get back to you and let you know if our Cores are behaving in the same way re Mythbackend.

Below is a snapshot of 'top' running on my i945 Hybrid Core (Celeron 2.8Ghz) here at home with only Intel onboard graphics for comparison on memory/processor usage;

Tasks: 244 total, 1 running, 221 sleeping, 0 stopped, 22 zombie
Cpu(s): 0.2% us, 0.5% sy, 0.0% ni, 99.2% id, 0.0% wa, 0.2% hi, 0.0% si
Mem: 507852k total, 483892k used, 23960k free, 61032k buffers
Swap: 995988k total, 2964k used, 993024k free, 126912k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15489 root 16 0 2268 1176 832 R 0.3 0.2 0:00.04 top
1 root 16 0 1584 516 452 S 0.0 0.1 0:01.30 init
2 root RT 0 0 0 0 S 0.0 0.0 0:00.60 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/0
4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT 0 0 0 0 S 0.0 0.0 0:00.60 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:00.09 ksoftirqd/1
7 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root 10 -5 0 0 0 S 0.0 0.0 0:00.16 events/0
9 root 10 -5 0 0 0 S 0.0 0.0 0:00.05 events/1
10 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
11 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
14 root 10 -5 0 0 0 S 0.0 0.0 0:00.37 kblockd/0
15 root 10 -5 0 0 0 S 0.0 0.0 0:00.04 kblockd/1
16 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
150 root 15 0 0 0 0 S 0.0 0.0 0:01.37 pdflush
151 root 15 0 0 0 0 S 0.0 0.0 0:01.47 pdflush

Regards

Andrew

archived · « **Reply #8 on:** January 08, 2007, 08:52:04 pm »

Quote from: "totallymaxed"

Quote from: "cmorant"
Hi Andrew,

Mobo: ASRockAlive NF4G - DVI (Nforce4 - Integrated Geforce 6100)
Tried with 512 MB but had to get more to avoid many crashes.

> We don't use Myth here but my understanding is that the Mythbackend > should only be running on the Core or Hybrid and not on MD's

Sounds logical

>Make sure that Myth is turned off for each MD in Web Admin->Wizards->Media Directors.

Done, (I suppose you mean "PVR Capture Card" set to "None") anyway, the MD never was configured for a PVR card.

Christian

**To disable Myth on a given MD you need to use the Software Modules 'Edit' button for the MD in question. This will display a new window where you can un-check 'Myth' for that MD.

...

Regards

Andrew

Hi,

isn't that check related to mythfrontend, not backend ?

I'm also spotting that mythbackend is present by default, but didn't yet tackle into erasing it... but would also like to do it...

Regards,

Rob.

archived · « **Reply #9 on:** January 08, 2007, 09:06:55 pm »

Quote from: "tinia"

Quote from: "totallymaxed"
Quote from: "cmorant"
Hi Andrew,

Mobo: ASRockAlive NF4G - DVI (Nforce4 - Integrated Geforce 6100)
Tried with 512 MB but had to get more to avoid many crashes.

> We don't use Myth here but my understanding is that the Mythbackend > should only be running on the Core or Hybrid and not on MD's

Sounds logical

>Make sure that Myth is turned off for each MD in Web Admin->Wizards->Media Directors.

Done, (I suppose you mean "PVR Capture Card" set to "None") anyway, the MD never was configured for a PVR card.

Christian

**To disable Myth on a given MD you need to use the Software Modules 'Edit' button for the MD in question. This will display a new window where you can un-check 'Myth' for that MD.

...

Regards

Andrew

Hi,

isn't that check related to mythfrontend, not backend ?

I'm also spotting that mythbackend is present by default, but didn't yet tackle into erasing it... but would also like to do it...

Regards,

Rob.

Hi Rob,

Yes I think your probably right it will turn off only the frontend. Yes the backend seems to load whether you are using it or not. We are working on disabling Myth so will let you know if we get anywhere.

Andrew

archived · « **Reply #10 on:** January 10, 2007, 12:04:35 am »

Try disabling the script Restart_MythtvBackend, I think that the script is enabled by default and I think that is what starts it and keeps it running.

Regards
Darren

archived · « **Reply #11 on:** January 10, 2007, 06:37:47 pm »

The best would be that the "MD generator script" takes the parameter into account and removes it automatically so that eveyone benefits from this.

Regards,

Christian

News:

Author Topic: What memory should have an MD (Read 10702 times)

archived

What memory should have an MD

archived

Re: What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD

archived

What memory should have an MD