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FS#5 - [kernel26rt] disable CONFIG_USB_DYNAMIC_MINORS for lower usb latency
Opened by Ray Rashif (schivmeister) - Thursday, 23 July 2009, 15:38 GMT+1
Last edited by Ray Rashif (schivmeister) - Monday, 01 August 2011, 00:00 GMT+1
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DetailsIssueApparently, disabling said option will allow for lower latency of USB (audio). This cannot be proven until a user documents as such and provides substantial reports of latency compare/contrast. However, the kernel documentation advises “NO” as the default for the option, so there may be little or no consequence even if it were to be disabled without justification. Sources/Referenceshttp://forums.archaudio.org/topic/option-config_usb_dynamic_minors-in-kernel26rt-testing http://cateee.net/lkddb/web-lkddb/USB_DYNAMIC_MINORS.html Solution
CONFIG_USB_DYNAMIC_MINORS=n |
Monday, 01 August 2011, 00:00 GMT+1
Reason for closing: Deferred
Updated in svn + built new i686 package. No problems so far but also no noticeable latency difference.
I say we implement this. As far as I can tell it’s needed in something like an office or server environment.
I do know for sure we will not get any substantial feedback since this is one of those that are “suggested improvements without obvious results”. As such, can close this on next kernel update.
Reopened in light of
FS#10as it was implemented before the move to stable. Will be adding this to testing build and requesting user to test.