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mount: add --async-read flag to disable asynchronous reads

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See: https://forum.rclone.org/t/constantly-high-iowait-add-log/14156
This commit is contained in:
Nick Craig-Wood 2020-02-04 10:21:07 +00:00
parent 3c91abce74
commit e3c11c9ca1
2 changed files with 5 additions and 1 deletions
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4
cmd/mount/mount.go
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@ -32,12 +32,14 @@ func mountOptions(device string) (options []fuse.MountOption) {
fuse.Subtype("rclone"),
fuse.FSName(device),
fuse.VolumeName(mountlib.VolumeName),
fuse.AsyncRead(),
// Options from benchmarking in the fuse module
//fuse.MaxReadahead(64 * 1024 * 1024),
//fuse.WritebackCache(),
}
if mountlib.AsyncRead {
options = append(options, fuse.AsyncRead())
}
if mountlib.NoAppleDouble {
options = append(options, fuse.NoAppleDouble())
}

2
cmd/mountlib/mount.go
View File

@ -36,6 +36,7 @@ var (
NoAppleDouble = true // use noappledouble by default
NoAppleXattr = false // do not use noapplexattr by default
DaemonTimeout time.Duration // OSXFUSE only
AsyncRead = true // do async reads by default
)
// Global constants
@ -356,6 +357,7 @@ be copied to the vfs cache before opening with --vfs-cache-mode full.
flags.BoolVarP(cmdFlags, &Daemon, "daemon", "", Daemon, "Run mount as a daemon (background mode).")
flags.StringVarP(cmdFlags, &VolumeName, "volname", "", VolumeName, "Set the volume name (not supported by all OSes).")
flags.DurationVarP(cmdFlags, &DaemonTimeout, "daemon-timeout", "", DaemonTimeout, "Time limit for rclone to respond to kernel (not supported by all OSes).")
flags.BoolVarP(cmdFlags, &AsyncRead, "async-read", "", AsyncRead, "Use asynchronous reads.")
if runtime.GOOS == "darwin" {
flags.BoolVarP(cmdFlags, &NoAppleDouble, "noappledouble", "", NoAppleDouble, "Sets the OSXFUSE option noappledouble.")