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RE: [Wlug] Memory issues

by Guilderson, Tom W.

Are you positive that the problem is memory and not CPU? Most decoding of audit and video is very cpu intensive. If the audio/video app gets swapped out (of the cpu), you can notice choppiness in quality. A good graphical tool such as Xosview can give you an indication where the bottleneck might be since you can see CPU, memory, swap, disk, etc. all at once and see what is pegged. > > michaellong> Is there a way to reserve a block of memory when starting > michaellong> realaudio. I have noticed that when my system is > running out > michaellong> of free memory the audio quality goes to sh*t as the open > michaellong> application fight over resources. > > Without the source, no. With the source, you could do an > mlockall(MCL_FUTURE), which would lock all of the app's pages into > memory. > > One question, though. When you say your system is > running out of free > memory, on what are you basing that statement? The > output of free? > Much of what is in memory is cached. If it wasn't, > performance would > suck. Thus, the "free" field should report very little > if your OS is > being at all effective at memory management. > > One other question, what kernel version are you running? >

Feb. 15, 2001

Re: [Wlug] Assembly compiler in Bash...

by Jeffry Smith

> Hey Everybody, > > 1st... I won't make it to the meeting tonight, but in regards to the > installfest on Saturday, I'm looking for a couple more > installers/volunteers... > > 2nd... I was reading slashdot and saw that some guy wrote an assembly > compiler in Bash... > > I think next someone needs to write a bash shell in scheme... > Well, they're not the same thing, but psh is the perl shell (use perl for a shell language) and esh is the lisp shell (easy shell) jeff ----------------------------------------------------------------------- Jeffry Smith Technical Sales Consultant Mission Critical Linux smith(a)missioncriticallinux.com phone:603.930.9739 fax:978.446.9470 ----------------------------------------------------------------------- Thought for today: cycle of reincarnation n. See wheel of reincarnation.

Feb. 15, 2001

Thanks!

by Doctor Orbitz

Hey, thanks alot all of you who went to http://orbitz.dyn.dhs.org/test.php. For those of you wondering why the heck I'd ask a such a thing, here is an explination. A friend of mine got a cool (but I'm assuming not very new idea) for passive OS detection through version strings on network software, in this case web browsers. What the php script does is log all of your version (User-Agent header) strings to a file, then by doing some greps and sort I create a wonderful list of all the strings. Then I use a perl script i made to convert the version strings to snort (www.snort.org) rule sets. So now when people visit http://orbitz.dyn.dhs.org/ and they are using a web browser in my data base, I can log what OS, web browser, and whatelse is in the header. So the bigger the database, the more people I can pick up. Its a pretty cool idea I think. There are other ways (probably simpler and more efficient) of doing this. Such as possible an apache mod. Thanks again, Orbitz

Feb. 15, 2001

Assembly compiler in Bash...

by Keller, Tim

Hey Everybody, 1st... I won't make it to the meeting tonight, but in regards to the installfest on Saturday, I'm looking for a couple more installers/volunteers... 2nd... I was reading slashdot and saw that some guy wrote an assembly compiler in Bash... I think next someone needs to write a bash shell in scheme... Later, Tim.

Feb. 15, 2001

Volunteers

by Orbitz

Hey, Could you guys help me out with alittle project I'm doing? I'm trying to compile a (hopefully) large list of webbrowser version strings. All you have to do is goto http://orbitz.dyn.dhs.org/test.php and I can do the rest. Thanks, Orbitz

Feb. 15, 2001

Re: [Wlug] Memory issues

by Jeff Moyer

==> Regarding [Wlug] Memory issues; Michael Long <michaellong(a)charter.net> adds: michaellong> Is there a way to reserve a block of memory when starting michaellong> realaudio. I have noticed that when my system is running out michaellong> of free memory the audio quality goes to sh*t as the open michaellong> application fight over resources. Without the source, no. With the source, you could do an mlockall(MCL_FUTURE), which would lock all of the app's pages into memory. One question, though. When you say your system is running out of free memory, on what are you basing that statement? The output of free? Much of what is in memory is cached. If it wasn't, performance would suck. Thus, the "free" field should report very little if your OS is being at all effective at memory management. One other question, what kernel version are you running? Regards, Jeff

Feb. 15, 2001

Re: [Wlug] Memory issues

by Michael Long

Oops. I did not mean to leave the outputs from 'free' in this message :( ... please ignore them. On Wednesday 14 February 2001 16:42, Michael Long wrote: > Is there a way to reserve a block of memory when starting realaudio. I have > noticed that when my system is running out of free memory the audio quality > goes to sh*t as the open application fight over resources. > > Mike > > total used free shared buffers cached > Mem: 261668 24760 236908 0 5472 6712 > -/+ buffers/cache: 12576 249092 > Swap: 136512 0 136512 > > > total used free shared buffers cached > Mem: 261668 159788 101880 0 6396 73424 > -/+ buffers/cache: 79968 181700 > Swap: 136512 0 136512 > > > total used free shared buffers cached > Mem: 261668 93128 168540 0 6632 73600 > -/+ buffers/cache: 12896 248772 > Swap: 136512 0 136512 > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

Feb. 15, 2001

Memory issues

by Michael Long

Is there a way to reserve a block of memory when starting realaudio. I have noticed that when my system is running out of free memory the audio quality goes to sh*t as the open application fight over resources. Mike total used free shared buffers cached Mem: 261668 24760 236908 0 5472 6712 -/+ buffers/cache: 12576 249092 Swap: 136512 0 136512 total used free shared buffers cached Mem: 261668 159788 101880 0 6396 73424 -/+ buffers/cache: 79968 181700 Swap: 136512 0 136512 total used free shared buffers cached Mem: 261668 93128 168540 0 6632 73600 -/+ buffers/cache: 12896 248772 Swap: 136512 0 136512

Feb. 14, 2001

Player Question

by gwlt＠ma.ultranet.com

Newbie looking for quick suggestions. In search of a good media player that operates in Linux and can play either (preferably) RealMedia, or (sadly) WindowsMedia formats. Any suggestions? Sorry for this ultrasimplistic question. Colin

Feb. 14, 2001

Re: [Wlug] Player Question

by Doctor Orbitz

I do not know of any Linux player that handles WMP files. However, for RealMedia, you are in luck. There is a little program called RealPlayer which appears to work great for RealMedia files:) Orbitz gwlt(a)ma.ultranet.com wrote: > Newbie looking for quick suggestions. > In search of a good media player that operates in Linux and can play > either (preferably) RealMedia, or (sadly) WindowsMedia formats. Any > suggestions? > Sorry for this ultrasimplistic question. > Colin

Feb. 14, 2001