Sujet CPU audio à 50% au repos sur Logic?
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JeffiX
1638
AFicionado·a
Membre depuis 19 ans
Sujet de la discussion Posté le 30/10/2005 à 11:48:08CPU audio à 50% au repos sur Logic?
Bien alors:
sur mon PC intel Pentium 4, 2.7Ghz, 1 Go ram
avec Logic 5 et Une motu 828 mk2;
voila ce qui m'arrive: Je sature tres vite dès que je met des pistes en lecture, l'ordinateur se bloque, une fenetre s'ouvre et me dit que les ressources sont saturées.
sur logic, y'a une petite fenetre que l'on peut activer pour connaitre les performances audio:
la premiere barre indique en moyenne 50% de CPU sur l'audio, et 00% sur la barre Disk i/o
C'est constant même lorsque je n'ai aucune piste en lecture.
d'ou cela provient-il?
j'ai reglé ma carte son à 256 buffers par sample, alors qu'avant elle était à 512, mais cela ne change rien.
A part Norton, rien ne tourne en tache de fond..
quelqu'un à une idée?
sur mon PC intel Pentium 4, 2.7Ghz, 1 Go ram
avec Logic 5 et Une motu 828 mk2;
voila ce qui m'arrive: Je sature tres vite dès que je met des pistes en lecture, l'ordinateur se bloque, une fenetre s'ouvre et me dit que les ressources sont saturées.
sur logic, y'a une petite fenetre que l'on peut activer pour connaitre les performances audio:
la premiere barre indique en moyenne 50% de CPU sur l'audio, et 00% sur la barre Disk i/o
C'est constant même lorsque je n'ai aucune piste en lecture.
d'ou cela provient-il?
j'ai reglé ma carte son à 256 buffers par sample, alors qu'avant elle était à 512, mais cela ne change rien.
A part Norton, rien ne tourne en tache de fond..
quelqu'un à une idée?
Trop trop bon!
JeffiX
1638
AFicionado·a
Membre depuis 19 ans
2 Posté le 30/10/2005 à 11:49:20
Je précise que je sature en utilisant soit des pistes audio, soit des pistes audio-instru...
je n'utilise pas d'expandeurs externes.
merci
je n'utilise pas d'expandeurs externes.
merci
Trop trop bon!
Anonyme
3070
3 Posté le 30/10/2005 à 11:52:11
Citation : A part Norton, rien ne tourne en tache de fond..
Les antivirus sont gourmants en ressource.Désinstalle le, et de préférence il vaudrais mieux ne pas avoir internet sur ton pc musique.
Ceci dit, ça ne va pas réduire d'un coup ta consommation cpu.
Donc si tu as internet sur ton pc, enlève tout ce qui est "msn", et conneries comme ça.
zsound
68
Posteur·euse AFfranchi·e
Membre depuis 22 ans
4 Posté le 30/10/2005 à 11:55:29
Il faut absolument que tu stoppe tous les logiciels tournant en arriere plan.
Il faut que tu optimise windows pour l'audio. Si tu parle british et que tu as du temps voici des conseils :
this section is very much in the alpha stages at the moment since i have only just started compiliing it. useful information on windows xp is starting to appear now as techies experiment with it and some decent tweaks are now appearing...so here we go. if you find anything useful which is not listed, please mail me with the link...thanks oh, and this page is not really in any order at the moment so don't be put off if the first few tweaks are a bit basic...
as always, before you start tweaking, ensure your pc is running correctly:
1. make sure you have no IRQ conflicts or memory range conflicts, if you have, your system will not run smoothly and may not even work at all for some things. you can check this by looking at the properties of each device and checking for anything being written about conflicts.
2. make sure you have reliable drivers for everything. xp, like win2000 has a lot of commonly used drivers so you won't need many except for your audio hardware. the most recent drivers are not necessarily the best. check the known bugs/issues list. try the driverguide along with the manufacturers website. if you built the system yourself, make sure you've installed the motherboard driver(s).
tweaks:
3. disable unnecessary 'startup' items. this, as in win 9x can be done by clicking the start button, then run and typing msconfig. now go to the 'startup' tab and un-tick any items you don't feel you need. this method is totally undoable (as long as the option doesn't stop windows from loading properly) - just excercise a bit of caution but of course, you'll have backed up all you files before you started tweaking anyway won't you?
4. windows xp now self-optimises to some extent. it attempts to monitor your usage patterns and optimises the file system accordingly (every three days upon system inactivity). at boot-time, it will pre-fetch some of the data which is often used directly after boot-up which should speed up your application loading time.
5. windows xp, like 2000 uses 'services'. these are individual windows components which are specialised to run various functions. unnecessary services can be disabled to preserve memory and processor power:
go to 'start' > 'run' and type services.msc - this should bring up the services screen. set all services which aren't disabled to 'manual'. now restart your machine (it will take longer to boot for just this time) and go back to the services screen after a minute or so. any services which are not started after you have used your audio applications should be ok to disable, but you can leave them on 'manual' just incase. any services which are started should be set to 'automatic' so that windows will start them when it boots. do excercise caution though...and always back up you files before tweaking...you should disable the services for any windows components you have disabled as windows probabaly won't do it.
there are several 'generic' services that you probably won't use and should therefore be able to disable such as:
'portable media serial number' - unless you have a portable music device that you plug in to your pc.
'print spooler' - if you don't do any printing from your audio install you can disable it.
'help and support' - windows alleged "help".
'telnet' - unless you use it, and if you don't know what it is, trust me, you don't use it...
'error reporting' - as you'd expect, it's windows error reporting.
'task scheduler' - lets face it, it's awful but it now does some of the aforementioned data pre-fetching. personally, i'd turn it off.
'indexing service' - for the microsoft 'search for files...' function
'fast user switching' - as the name implies...
'internet connection/firewall sharing' - if you don't use the net or share a connection/firewall on this install, disable it.
6. as with all new-ish microsoft os's, xp has the oh-so-useful 'automatic update' feature. you must disable this or prepare to lose takes...you've been warned:
go to 'start' > 'settings' > 'control panel' > 'performance and maintainance' > 'automatic updates' and select 'turn off automatic updating, i want to update my computer manually'.
7. windows xp, like me has the debateably useful 'system restore' function which backs up your system files periodically to try to ensure that you can never kill your machine by dodgy installs etc etc. in my experience, system restore is a bad thing as it uses a surprisingly large amount od resources and causes a lot of disk activity which, while supposedly only running during system inactivity, actually runs quite a large percentage of the time. in a true audio system, it should be disabled, you can still make restore points manually if you want to anyway...
right-click on 'my computer' and choose 'properties'> 'system restore' and choose 'turn off system restore on all drives'.
8. boost overall system performance by increasing the irq priority of the cmos real-time clock by doing this:
copy this:
REGEDIT4
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl]
"IRQ8Priority"=dword:00000001
and paste it into a text editor such as notepad or wordpad. save the file as whatever name you want, perhaps boost_irq_priority with a .reg file extension e.g. boost_irq_priority.reg - you can now close the text-editor and simply double-click on the file you just created to enter the information into the registry.
to undo this tweak, repeat the procedure but copy this instead into the text file:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl]
"IRQ8Priority"=dword:00000000
you should find that your overall system performance increases from this tweak.
9. make sure your DMA capable devices are run in DMA mode which uses much less cpu power...right-click on 'my computer' select 'properties' > 'device manager' and find and expland the entry named 'IDE ATA/ATAPI device controllers'. now click on 'advanced settings' and check each channel and each device on that channel. you should set the devices which are DMA compatible (most new-ish devices are) to 'DMA if available'.
10. add the following line to your system.ini file after the [386 Enh] tag so it looks as follows:
[386 Enh]
ConservativeSwapfileUsage=1
this makes the system use RAM more often rather than the virtual memory. this improves system performance since RAM is much faster than the hard-disk. (note: do not use this option if you have less than 128MB of RAM installed) (Go to 'start'>'run' and type system.ini - a notepad will be launched containing the system.ini file. add the above line after [386 Enh] so it looks as above. there will be other lines in the section you're adding to, just add it before them. now save the changes you made and close the notepad - as ever, you will have to restart for the change to take effect).
also add or edit the entry after the [vcache] tag in system.ini so it appears as follows:
[vcache]
MinFileCache=16384
MaxFileCache=16384
this limits the amount of your system memory (RAM) that windows uses as a buffer or cache when reading from or writing to disk drives to 16MB instead of the cubase default of 1/4 of your system RAM/Memory which is often too high.
if the [vcache] tag does not exist in your system.ini, add it after the [386 enh] tag and it's contents so i looks as above.
11. audio machines always benefit from removing acpi (advanced computer & power interface) as windows then has less control of your pc. go to control panel > system > hardware > device manager > click on computer then double click on Advanced Computer and Power Interface (ACPI) pc. click on the drivers tab, then on update driver. don't let windows install automatically, choose to select the driver from a list. select 'standard pc' then install the drivers and allow the pc to reboot.
also, go to control panel > system > hardware > device manager > click on computer then double click on standard pc (there may be 2 of them, do this on both).
12. if you are experiencing pop/crackles from your soundcard, try optimising windows performance for background tasks. it is not reccomended to alter the performance options program-by-program as this has been known to cause problems - be careful of altering program priorities with RME audio cards, their website has the proper information on it as regards priorities. (go to 'Control Panel' > 'System' >' Advanced' and select 'Best performance for background services' - or similar).
13. don't set your display resolution and bit depth too high, experiment with different settings starting from 16 bit 800 x 600 and working upwards with a reasonably complex song until the re-draws get slower then set it back to it's previous setting (when re-draws were acceptably quick). don't set your display to 256 colours as most new graphics cards do not accelerate this number of colours meaning your processor will have to do the work instead. rme advise that you keep the colour-depth at 16 Bits though this is not always the best setting.
14. make sure hardware graphics acceleration is on FULL. this takes some load off your processor (right-click on the desktop and select 'properties' from the menu. now click on 'settings' then 'advanced' then 'troubleshooting' now set the 'hardware acceleration' slider up to full).
15. turn of visual effects. these consume unnecesary amounts of cpu time. (control panel > system > advanced > performance settings > visual effects. Select custom, de-select all options and apply).
16. set windows theme to 'classic' (right click on desktop, select properties, windows theme - first option).
17. as always, the less icons and the less complex your background images (desktop and cubase), the less 'background' cpu cycles and memory will be used.
18. make sure that only one user is logged on at a time. individual user accounts may be handy but windows actually leaves the programs and utilities for each user open until that user closes them.
19. for us audio-users, the picture viewer in win xp should not be necessary, it can be unregistered (removed from windows but not uninstalled) by typing the following from a command prompt:
regsvr32 /u shimgvw.dll
20. is error reporting annoying you? you can enable or disable it by going to to 'control panel' > 'system' > 'advanced'. now click on 'error reporting' and choose either 'enable' or 'disable'.
21. want to disable windows apm? (automatic power mode) it may increase system stability since windows will not then be in control of the power section of your motherboard. on the other hand, you may want to enable apm if you don't suffer a performance hit since your pc will then turn off when you request it to from windows. either way, you can change the setting by right clicking on my computer then clicking on 'properties'. now choose 'hardware' then 'device mangager'. next click on 'view' and then on 'show hidden devices'. double-click on 'nt atm/legacy interface mode' and a new screen will appear, you can now choose to enable or disable apm from the menu at the bottom of this screen.
22. want to remove microsoft messenger? here's how...
find the file c:\windows\inf\sysoc.inf (replace c: with whatever you windows install path is if it's not on drive c) and open it in a text-editor such as wordpad. find the section which reads:
msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,hide,7
and remove the word 'hide' so it reads:
msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,,7
now save the file and go to 'control panel' > 'add/remove programs' and you will be able to uninstall messenger.
this method should work for most windows applications/utilities which are listed in sysoc.inf.
23. got xp pro? you can access lots of hidden features. just click the start button then go to 'run' and type gpedit.msc - you will now be presented with the 'group policy mmc' window. explore the tree structure to see all the tweaks you can make...
24. want xp to boot faster? try this microsoft utility (beware, it's quite techy):
https://www.microsoft.com/hwdev/fastboot
need more tweaks? check tweakxp.com
Il faut que tu optimise windows pour l'audio. Si tu parle british et que tu as du temps voici des conseils :
this section is very much in the alpha stages at the moment since i have only just started compiliing it. useful information on windows xp is starting to appear now as techies experiment with it and some decent tweaks are now appearing...so here we go. if you find anything useful which is not listed, please mail me with the link...thanks oh, and this page is not really in any order at the moment so don't be put off if the first few tweaks are a bit basic...
as always, before you start tweaking, ensure your pc is running correctly:
1. make sure you have no IRQ conflicts or memory range conflicts, if you have, your system will not run smoothly and may not even work at all for some things. you can check this by looking at the properties of each device and checking for anything being written about conflicts.
2. make sure you have reliable drivers for everything. xp, like win2000 has a lot of commonly used drivers so you won't need many except for your audio hardware. the most recent drivers are not necessarily the best. check the known bugs/issues list. try the driverguide along with the manufacturers website. if you built the system yourself, make sure you've installed the motherboard driver(s).
tweaks:
3. disable unnecessary 'startup' items. this, as in win 9x can be done by clicking the start button, then run and typing msconfig. now go to the 'startup' tab and un-tick any items you don't feel you need. this method is totally undoable (as long as the option doesn't stop windows from loading properly) - just excercise a bit of caution but of course, you'll have backed up all you files before you started tweaking anyway won't you?
4. windows xp now self-optimises to some extent. it attempts to monitor your usage patterns and optimises the file system accordingly (every three days upon system inactivity). at boot-time, it will pre-fetch some of the data which is often used directly after boot-up which should speed up your application loading time.
5. windows xp, like 2000 uses 'services'. these are individual windows components which are specialised to run various functions. unnecessary services can be disabled to preserve memory and processor power:
go to 'start' > 'run' and type services.msc - this should bring up the services screen. set all services which aren't disabled to 'manual'. now restart your machine (it will take longer to boot for just this time) and go back to the services screen after a minute or so. any services which are not started after you have used your audio applications should be ok to disable, but you can leave them on 'manual' just incase. any services which are started should be set to 'automatic' so that windows will start them when it boots. do excercise caution though...and always back up you files before tweaking...you should disable the services for any windows components you have disabled as windows probabaly won't do it.
there are several 'generic' services that you probably won't use and should therefore be able to disable such as:
'portable media serial number' - unless you have a portable music device that you plug in to your pc.
'print spooler' - if you don't do any printing from your audio install you can disable it.
'help and support' - windows alleged "help".
'telnet' - unless you use it, and if you don't know what it is, trust me, you don't use it...
'error reporting' - as you'd expect, it's windows error reporting.
'task scheduler' - lets face it, it's awful but it now does some of the aforementioned data pre-fetching. personally, i'd turn it off.
'indexing service' - for the microsoft 'search for files...' function
'fast user switching' - as the name implies...
'internet connection/firewall sharing' - if you don't use the net or share a connection/firewall on this install, disable it.
6. as with all new-ish microsoft os's, xp has the oh-so-useful 'automatic update' feature. you must disable this or prepare to lose takes...you've been warned:
go to 'start' > 'settings' > 'control panel' > 'performance and maintainance' > 'automatic updates' and select 'turn off automatic updating, i want to update my computer manually'.
7. windows xp, like me has the debateably useful 'system restore' function which backs up your system files periodically to try to ensure that you can never kill your machine by dodgy installs etc etc. in my experience, system restore is a bad thing as it uses a surprisingly large amount od resources and causes a lot of disk activity which, while supposedly only running during system inactivity, actually runs quite a large percentage of the time. in a true audio system, it should be disabled, you can still make restore points manually if you want to anyway...
right-click on 'my computer' and choose 'properties'> 'system restore' and choose 'turn off system restore on all drives'.
8. boost overall system performance by increasing the irq priority of the cmos real-time clock by doing this:
copy this:
REGEDIT4
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl]
"IRQ8Priority"=dword:00000001
and paste it into a text editor such as notepad or wordpad. save the file as whatever name you want, perhaps boost_irq_priority with a .reg file extension e.g. boost_irq_priority.reg - you can now close the text-editor and simply double-click on the file you just created to enter the information into the registry.
to undo this tweak, repeat the procedure but copy this instead into the text file:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl]
"IRQ8Priority"=dword:00000000
you should find that your overall system performance increases from this tweak.
9. make sure your DMA capable devices are run in DMA mode which uses much less cpu power...right-click on 'my computer' select 'properties' > 'device manager' and find and expland the entry named 'IDE ATA/ATAPI device controllers'. now click on 'advanced settings' and check each channel and each device on that channel. you should set the devices which are DMA compatible (most new-ish devices are) to 'DMA if available'.
10. add the following line to your system.ini file after the [386 Enh] tag so it looks as follows:
[386 Enh]
ConservativeSwapfileUsage=1
this makes the system use RAM more often rather than the virtual memory. this improves system performance since RAM is much faster than the hard-disk. (note: do not use this option if you have less than 128MB of RAM installed) (Go to 'start'>'run' and type system.ini - a notepad will be launched containing the system.ini file. add the above line after [386 Enh] so it looks as above. there will be other lines in the section you're adding to, just add it before them. now save the changes you made and close the notepad - as ever, you will have to restart for the change to take effect).
also add or edit the entry after the [vcache] tag in system.ini so it appears as follows:
[vcache]
MinFileCache=16384
MaxFileCache=16384
this limits the amount of your system memory (RAM) that windows uses as a buffer or cache when reading from or writing to disk drives to 16MB instead of the cubase default of 1/4 of your system RAM/Memory which is often too high.
if the [vcache] tag does not exist in your system.ini, add it after the [386 enh] tag and it's contents so i looks as above.
11. audio machines always benefit from removing acpi (advanced computer & power interface) as windows then has less control of your pc. go to control panel > system > hardware > device manager > click on computer then double click on Advanced Computer and Power Interface (ACPI) pc. click on the drivers tab, then on update driver. don't let windows install automatically, choose to select the driver from a list. select 'standard pc' then install the drivers and allow the pc to reboot.
also, go to control panel > system > hardware > device manager > click on computer then double click on standard pc (there may be 2 of them, do this on both).
12. if you are experiencing pop/crackles from your soundcard, try optimising windows performance for background tasks. it is not reccomended to alter the performance options program-by-program as this has been known to cause problems - be careful of altering program priorities with RME audio cards, their website has the proper information on it as regards priorities. (go to 'Control Panel' > 'System' >' Advanced' and select 'Best performance for background services' - or similar).
13. don't set your display resolution and bit depth too high, experiment with different settings starting from 16 bit 800 x 600 and working upwards with a reasonably complex song until the re-draws get slower then set it back to it's previous setting (when re-draws were acceptably quick). don't set your display to 256 colours as most new graphics cards do not accelerate this number of colours meaning your processor will have to do the work instead. rme advise that you keep the colour-depth at 16 Bits though this is not always the best setting.
14. make sure hardware graphics acceleration is on FULL. this takes some load off your processor (right-click on the desktop and select 'properties' from the menu. now click on 'settings' then 'advanced' then 'troubleshooting' now set the 'hardware acceleration' slider up to full).
15. turn of visual effects. these consume unnecesary amounts of cpu time. (control panel > system > advanced > performance settings > visual effects. Select custom, de-select all options and apply).
16. set windows theme to 'classic' (right click on desktop, select properties, windows theme - first option).
17. as always, the less icons and the less complex your background images (desktop and cubase), the less 'background' cpu cycles and memory will be used.
18. make sure that only one user is logged on at a time. individual user accounts may be handy but windows actually leaves the programs and utilities for each user open until that user closes them.
19. for us audio-users, the picture viewer in win xp should not be necessary, it can be unregistered (removed from windows but not uninstalled) by typing the following from a command prompt:
regsvr32 /u shimgvw.dll
20. is error reporting annoying you? you can enable or disable it by going to to 'control panel' > 'system' > 'advanced'. now click on 'error reporting' and choose either 'enable' or 'disable'.
21. want to disable windows apm? (automatic power mode) it may increase system stability since windows will not then be in control of the power section of your motherboard. on the other hand, you may want to enable apm if you don't suffer a performance hit since your pc will then turn off when you request it to from windows. either way, you can change the setting by right clicking on my computer then clicking on 'properties'. now choose 'hardware' then 'device mangager'. next click on 'view' and then on 'show hidden devices'. double-click on 'nt atm/legacy interface mode' and a new screen will appear, you can now choose to enable or disable apm from the menu at the bottom of this screen.
22. want to remove microsoft messenger? here's how...
find the file c:\windows\inf\sysoc.inf (replace c: with whatever you windows install path is if it's not on drive c) and open it in a text-editor such as wordpad. find the section which reads:
msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,hide,7
and remove the word 'hide' so it reads:
msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,,7
now save the file and go to 'control panel' > 'add/remove programs' and you will be able to uninstall messenger.
this method should work for most windows applications/utilities which are listed in sysoc.inf.
23. got xp pro? you can access lots of hidden features. just click the start button then go to 'run' and type gpedit.msc - you will now be presented with the 'group policy mmc' window. explore the tree structure to see all the tweaks you can make...
24. want xp to boot faster? try this microsoft utility (beware, it's quite techy):
https://www.microsoft.com/hwdev/fastboot
need more tweaks? check tweakxp.com
JeffiX
1638
AFicionado·a
Membre depuis 19 ans
5 Posté le 30/10/2005 à 12:31:29
Merci, mais je parle pas l'angalis, enfin du moins l'anglais technique.
bon, ceci dit, je n'arrive meme pas a bouncer une piste avec deux effets dessus, mon pc plante.
ca commence à ma gaver grave!!
en faisant ctrl+alt+sup, je remarque que mes ressources ne décollent pas quand le PC est au repos!
donc à mon avis, le probleme vient de logic, et/ou de la carte son.
bon, ceci dit, je n'arrive meme pas a bouncer une piste avec deux effets dessus, mon pc plante.
ca commence à ma gaver grave!!
en faisant ctrl+alt+sup, je remarque que mes ressources ne décollent pas quand le PC est au repos!
donc à mon avis, le probleme vient de logic, et/ou de la carte son.
Trop trop bon!
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