Pogoplug v4 I/O performance issues, how to tweak?

[WarheadsSE]

https://www.samba.org/samba/docs/using_samba/ch06.html
$this->bbcode_second_pass_quote('', 'B')oolean
These are simply yes or no values, but can be represented by any of the following: yes, no, true, false, 1, or 0. The values are case-insensitive: YES is the same as yes.

[swass]

For those of you interested in tuning these, I would HIGHLY recommend the GSO change. Results may vary, but my Pogo saw significant improvement with CPU hungry Samba when doing this.

$this->bbcode_second_pass_quote('WarheadsSE', 'h')ttps://www.samba.org/samba/docs/using_samba/ch06.html
$this->bbcode_second_pass_quote('', 'B')oolean
These are simply yes or no values, but can be represented by any of the following: yes, no, true, false, 1, or 0. The values are case-insensitive: YES is the same as yes.

[yeehaa]

thanks for the "tunings" on your blog!

[Guidobelix]

Many thanks to swass for his great post!
Following the instructions on his blog I achieved 40-42 MB/s writing and 65-70 MB/s reading using a WD 1Tb Passport connected via USB3 and 28-30 MB/s writing and 85-90 MB/s reading when using a RAID5 (4x2Tb) connected via SATA.

That means that I more or less doubled previous performances

Thanks a lot, great work!

Guido

[WarheadsSE]

I'd just want to point out that `ip` is the pre-installed tool, and you can see queue length as "noqueue" in the output of `ip link`

[grayman4hire]

$this->bbcode_second_pass_quote('Guidobelix', 'M')any thanks to swass for his great post!
Following the instructions on his blog I achieved 40-42 MB/s writing and 65-70 MB/s reading using a WD 1Tb Passport connected via USB3 and 28-30 MB/s writing and 85-90 MB/s reading when using a RAID5 (4x2Tb) connected via SATA.

That means that I more or less doubled previous performances

Thanks a lot, great work!

Guido

[WarheadsSE]

The exact tweaks in that blog post....

[grayman4hire]

$this->bbcode_second_pass_quote('WarheadsSE', 'T')he exact tweaks in that blog post....

[Guidobelix]

Litteraly, all the tweaks suggested in the post, from the first one to the last one: I followed it line by line (I already had cryptodev installed, so no changes there).
One caveat though: the numbers mentioned in the post are local, i.e. measured with
$this->bbcode_second_pass_code('', '
dd if=/dev/zero of=./bigfile bs=1M count=1024
dd of=/dev/null if=./bigfile bs=1M count=1024
')

This because I access samba via a wi-fi network, so the bottleneck is there. Tonight I'll try to connect with a cable and do some more testing.

I use this enclosure http://www.mediasonic.ca/product.php?id=1357292050 with 4 WD Red 2Tb disks connected using a Stat/eSata cable to the top port, configured as RAID5 (no spare).

As you might see from the comments to the post, I have set-up direct access to the individual disks of the RAID, but doing it to md0 didn't bring any benefit.

Edit: I have connected mia PC (WIn7) to my gigabit router via cable and I get 38-40 MB/s when reading a 1Gb file from my RAID5 connected with Samba and just above 10 MB/s when writing it back.