USB 3 Storage for Syzygy WDL files

[ernest]

I just ordered this one ...

Corsair Flash Voyager GTX 256GB USB 3.0 Flash Drive

http://www.amazon.com/Corsair-Flash-Voy ... +3.0+256GB

I am a bit surprised...
I learned that what matters with tablebases is access time (milliseconds)
and not Read/Write speeds (MB/s).

So why is your choice dictated by those MB/s diagrams ???

[AdminX]

So why is your choice dictated by those MB/s diagrams ???

My choice is based on transfer times and form factor. Where did you get the idea that it was based only on diagrams? I was providing data on the flash drive I chose to order. Did you not read my response to Rob Nicholas?

"I have a ton of SSD's . I just wanted a small Flash to port from system to system."

[ernest]

Oh well, never mind!...
I just wanted to stress that performance, for accessing tablebases, is obtained by small access time .
Quoting transfer times is irrelevant.

[Jesse Gersenson]

Access time can be measured with:

Code: Select all

sudo ioping -R /dev/sda2

replace /dev/sda2 with device path.

~$ sudo ioping -R /dev/sda2

--- /dev/sda2 (device 193.8 GiB) ioping statistics ---
21.4 k requests completed in 3.0 s, 8.1 k iops, 31.6 MiB/s
min/avg/max/mdev = 59 us / 123 us / 1.9 ms / 158 us

[AdminX]

The Flash arrive this morning these are the results on my system.

[ernest]

Well, 0.31 ms access time is very good for a flash drive !

Good choice (but not cheap !...)