My new factory-fresh Argon M.2 adapter tray arrived today (same firmware
as the original one had: 140704a10000), so I've done some comparative
speed tests. And after all that there's no difference between this one
and my original version(firmware upgraded to 141126a1ee82)! Using the
same M.2 SSD drive swapped between the adapter trays, I ran my earlier
speed testing script 5 times - the first time with the test.tmp file
deleted, and the subsequent four times without deleting it each time. I
then averaged the results of the latter four tests.
Code:
--------------------
New Adapter Old Adapter
Ave write (MB/s) 145.1 145.0
Ave read (MB/s) 227.5 225.9
Min write (MB/s) 137.2 135.3
Max write (MB/s) 163.0 170.3
Min read (MB/s) 226.8 222.0
Max read (MB/s) 228.1 227.2
--------------------
I had made a written note of the results of this test performed when I
first received the adapter tray and the SSD, so it's not my memory
playing tricks. It was definitely about 50% faster (although I can't be
sure whether I was consistent about deleting test.tmp or not, but its
presence doesn't affect the read speeds). I can only guess that maybe
the difference is down to the drive now having about 180GB of music
files on it, whereas initially the tests were done with an empty drive.
Could that affect the speed tests? I'm not about to delete everything
just to redo these tests, but I'm happy now that the trim-enabled
firmware has not affected the read and write speeds.
So now I have a spare Argon One M.2 adapter tray. What to do with
it..... Maybe I should buy another Argon One case and another
Raspberry Pi!
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