[BUGS] Net network performance question?

[Harry Woodward-Clarke]

yeah - I would be suspicious of the Telstra device. I should have thought
at least 20MB/s, and up to about 30MB/s without too much effort.

Of course, to get the super-duper speeds, both the Tx and Rx need to use
multiple antennas (MIMO) - hence why some of the fancy-schmancy Access
Points have all those antennas pointing every which way :)

The may be some tweaks you can do in the T-device (channel width, Tx power)
but I suspect you are stuck unless you put a "real" Wireless Access Point
in the mix.

.h

On Fri, 25 Jan 2019 at 09:49, Andrew Reilly <areilly at bigpond.net.au> wrote:

> Here's a group that just might have a few clues for me.  Any suggestions
> gratefully accepted.
>
> I run a FreeBSD system at home as a file server.  Have done since maybe
> '92 or so, but of course all of the moving parts and bits have changed over
> time.  Today's version has a new-ish version-1 Ryzen motherboard with 32G
> RAM (which I've managed to stop spontaneously freezing a couple of times a
> week, over the break, by locking _all_ P-states off except 0, in BIOS).
> That is host to an NVME SSD that holds root, /usr, /var, etc, and four 4T
> Hitachi drives in RaidZ form for user data.  There are two quota-limited
> ZFS volumes on there that I use to TimeMachine backup the house's two macOS
> systems.  Main network file service to the macs is over the latest Samba,
> with all of the Unix and Mac-friendly tweaks enabled, and that doesn't seem
> to work too badly.  Not totally fluid (SMB restrictions on file name
> characters bight every so often, as do slightly weird file permissions) but
> tolerable, and seemingly the only option really supported by macOS these
> days.  TimeMachine still run!
>  s over AFP, so NetAtalk is on there too.  That box is connected to a
> switch over gigabit ethernet, as is my mac desktop and a Telstra Netcomm
> cable-modem-cum-wifi-router.  Hanging off the 5GHz Wifi band at the moment
> is a brand new MacBook Air, a replacement for my wife's dying old MacBook.
> It's on it's first boot, and is attempting to restore from the last backup
> of the MacBook, some 280G.  It claims that it will take another 36 hours,
> at the current average pace of 2MB/s.  That seems low to me, by perhaps as
> much as a factor of 60.  I've read that 5GHz WiFi is supposed to manage
> 1300 Mb/s under good conditions, and in this case the new laptop is about
> eight feet from the WiFi router, in line of sight.  Doesn't get much better
> than that.  Not that there's much I can do about it now, but does anyone
> have any thoughts about why the restore performance should be so awful?
> Could it be bottlenecking on the laptop's APFS write speed?  Something
> pessimal about NetAtalk over WiF!
>  i?  A rubbish network stack in the Telstra modem?  (Heaven knows the
> user-interface and the firewall are rubbish.  The device drops all IPSec
> packets silently on the ground.)
>
> Cheers,
>
> Andrew Reilly
> E: areilly at bigpond.net.au
> M: +61-409-824-272
>
>
>
>
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-- 

Harry Woodward-Clarke
imago Dei, in quolibet homine, inveniatur
Seek Justice, Love Mercy, Walk Humbly with Your God - Micah 6v8
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