12308: Configurable read cache size.

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tom@tomclegg.ca>

diff --git a/lib/mount/command.go b/lib/mount/command.go
index f99e6da2317b1bb0d21ab9d8d6a7fc02810ba26f..da3f97b467b6302f8e6e5263886ea71d3ccb15d8 100644 (file)
--- a/lib/mount/command.go
+++ b/lib/mount/command.go
@@ -38,6 +38,7 @@ func (c *cmd) RunCommand(prog string, args []string, stdin io.Reader, stdout, st
        flags := flag.NewFlagSet(prog, flag.ContinueOnError)
        ro := flags.Bool("ro", false, "read-only")
        experimental := flags.Bool("experimental", false, "acknowledge this is an experimental command, and should not be used in production (required)")
+       blockCache := flags.Int("block-cache", 4, "read cache size (number of 64MiB blocks)")
        err := flags.Parse(args)
        if err != nil {
                logger.Print(err)
@@ -59,6 +60,7 @@ func (c *cmd) RunCommand(prog string, args []string, stdin io.Reader, stdout, st
                logger.Print(err)
                return 1
        }
+       kc.BlockCache = &keepclient.BlockCache{MaxBlocks: *blockCache}
        host := fuse.NewFileSystemHost(&keepFS{
                Client:     client,
                KeepClient: kc,