https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219645
Bug ID: 219645
Summary: max NFS I/O size is not tunable
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 183045
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=183045&action=edit
make max NFS client I/O size tunable
The maximum size of an I/O operation done by the NFS client is the
largest buffer cache block size (MAXBCACHEBUF).
This can only be changed by recompiling the kernel.
This patch make it a tunable called vfs.maxbcachebuf and tweaks the
NFS client to use this size for nm_rsize/nm_wsize by default.
It also generates a console log message if kern.ipc.maxsockbuf needs
to be increased.
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