Cameron Harr wrote:
Vladislav Bolkhovitin wrote:
Cameron Harr wrote:
Also, as I mentioned before, my time is going to be fairly limited
for a while, but I'll try to squeeze this in and will make sure I
run for longer periods of time. I'll also try to calculate an
exact end number based on iop/runtime.
Which backstorage do you use for BLOCKIO?
Fusion IO ioDrive. I generally use 1 or 2, but somtimes up to 4 at
a time.
It might be a reason of not stable results. Can you try with NULLIO
to narrow things down a bit?
I actually tested NULLIO a while back at Vu's suggestion, but I
believe I forgot to report on it. From my recollection, NULLIO gave
me pretty consistent block sizes of 512B, which is the BS I used in
the benchmark.
Were the IOPS, CS and IRQ rates results stable and consistent between
runs?
I don't remember about the IOPs, but CS and IRQ rates were stable.
However, they've also become stable in my later runs with
scst_threads=[123].
But with srpt_thread=0 - not, right?
Anyway, try with the latest code. There are noticeable changes there.
BTW, since you use the solid state media, you don't need any IO
scheduler. Hence, noop should be the best choice for you.
noop is what I've been running for the past while, before switching to
deadline yesterday.
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