[Info-vax] SAMBA really sloooow on OVMS Integrity. Any Ideas????

[R.A.Omond]

On 17/08/2010 18:01, PEN wrote:
>> "Len Whitwer" <len at psds.com> wrote in message
>> news:be124929-708b-429a-9234->d8dcceb2141a at p12g2000prn.googlegroups.com...
>>
>> On Aug 16, 12:37 pm, "PEN" <pen1959... at spam.bellsouth.net> wrote:
> [snip]
>>
>> Thanks Paul:
>>
>> I did notice that when doing a file transfer from windows to Samba
>> (Large File) it took
>> about a minute before the file even started the transfer.
>>
>> Len
>
>
> Hi Len,
>
> Slow writes are typically due to the disk volume having highwater
> marking enabled ($ show dev/full). When Windows creates a file it forces
> the server to allocate the entire disk space (to ensure sufficient space
> is available)before the client starts writing, which is why you see such
> a long delay at the beginning.
>
> To disable highwater marking;
>
> $ set volume/nohighwater <dev>:
>
> but it won't take effect until the disk is next mounted...

No, that's not correct.  The effect of setting a volume to
highwater or nohighwater is instant, and does NOT require
the disk to be dismounted and re-mounted.

Easily tested:

$ show proc/acc
$ pipe copy/log/alloc=1000000 nl: x.x ; set file/end x.x
$ show proc/acc