On 10-11-18 06:30, Zoltan Szecsei wrote:
Hi,
Can anyone please explain this to me?
For the last >30 hours I have been loading some 2.5TB of 200-400MB tiff
images, from another PC on our internal network, onto this new array.
Yesterday, during this load process, I copied 10 of these files (about
2.5GB) from the array onto the /home directory of the same system.
It took 33 seconds, equating to some 75MB/s.
This morning I came in to find that the load process had finished, so I
deleted the 10 test files from /home, and redid the identical copy test
(using bash-history, so: identical).
It took 123 seconds, equating to some 20MB/s.
Que? (as in Manuel from Faulty Towers :-) )
Is the situation with reading into /dev/null instead of /home the same ?
As this is reading issue, one thing that came to my mind:
- make sure the kernel is _not_ compiled with CONFIG_MULTICORE_RAID456.
It's afaik still experimental and can cause severe slowdowns
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