IOzone out where the buffalo roam ...

or something like that. Running IOzone (slightly modified to be able to run in a region far outside cache) on JackRabbit-s. 8TB raw, using a 5.5TB partition of 13 drives in a RAID6. Run is done via

As soon as it finishes, I will put the excel file up for download. We are seeing pretty good performance. Here is a snippet:

[ screen capture from IOzone run

](http://scalability.org/images/iozone-big.png)

The file sizes are 64 GB, 128 GB, 256 GB, 512 GB, and 1 TB (last row). As you can see its far outside cache, and performance is … quite good.

Tweets by hpcjoe

Finally fixed the cert issue ...https://scalability.org/finally-fixed-the-cert-issue/ …
— @hpcjoe, 2021-10-14
There is a name for my pain this evening. InfluxQL.

'select "*" from newdb where my_left_arm = twisted_behind_back AND ...'

SYNTAX ERROR: your arm must be broken for this query to work
— @hpcjoe, 2021-10-07
My gosh ... I've got 30 year old perl code that uses shelling of that time, and still runs.

This ... isn't a win.

That, and I really miss the ease of

if ($var =~ /regex/) {

}

blocks. No real equivalent in Py. Lots more boilerplate around using regex. /sigh
— @hpcjoe, 2021-10-07
Code works perfectly in Py3.9. Breaks in Py3.6. Looks like subprocess semantics are different between the two.

Just ... wow.

I could say bad things about the language. But the point of using these scripting languages is speed of development without much defensive coding.
— @hpcjoe, 2021-10-07
(looks around on the interwebs for a cluster top like thing for slurm, doesn't find one, and resists the urge to write his own ...)

#HPC
— @hpcjoe, 2021-10-06