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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:39:34 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-06-04 15:58:35 -0400
commit2d5dc3ba853344f39a41ae5bdb0a337b2ecaafa6 (patch)
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parentb7649158a0d241f8d53d13ff7441858539e16656 (diff)
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xen-blkfront: Introduce a 'max' module parameter to alter the amount of indirect segments.
The max module parameter (by default 32) is the maximum number of segments that the frontend will negotiate with the backend for indirect descriptors. Higher value means more potential throughput but more memory usage. The backend picks the minimum of the frontend and its default backend value. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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+What: /sys/module/xen_blkfront/parameters/max
+Date: June 2013
+KernelVersion: 3.11
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Maximum number of segments that the frontend will negotiate
+ with the backend for indirect descriptors. The default value
+ is 32 - higher value means more potential throughput but more
+ memory usage. The backend picks the minimum of the frontend
+ and its default backend value.
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