SGI network adapter Uživatelská příručka stáhnout pdf (Strana 12)

NFS

• NFS Version 3 Client Update

The overall behavior of the NFS Version 3 client has been modiﬁed to

improve mixed and heavy load performance. Most casual users of

NFS will probably notice little change. However, users should see a

marked improvement in performance under the following

conditions:

– Running applications that write large amounts of data over NFS

– Heavy use of bi-directional NFS I/O

– Mixed heavy local disk and NFS I/O

To improve performance under heavy loads, a new set of behaviors

have been added that perform the following actions:

– Enable full-duplex NFS trafﬁc

– Prevent read and write starvations

– Provide resource limiting to make the NFS client a fairer user of

system resources

These behaviors are based on the notion of fair scheduling of

asynchronous NFS I/O to prevent starvations and provide more

efﬁcient use of network bandwidth and server disk resources. This

also extends to prevent starvations between different NFS mounted

directories.

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SGI network adapter Uživatelská příručka Strana 12