Random Performance – Iometer (IOPS/latency), YAPT (random)

We are trying something different here. Folks tend to not like to click through pages and pages of benchmarks, so I'm going to weed out those that show little to no delta across different units (PCMark). I'm also going to group results performance trait tested. Here are the random access results:


Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It was originally developed by the Intel Corporation and announced at the Intel Developers Forum (IDF) on February 17, 1998 – since then it got wide spread within the industry. Intel later discontinued work on Iometer and passed it onto the Open Source Development Lab (OSDL). In November 2001, code was dropped on SourceForge.net. Since the relaunch in February 2003, the project is driven by an international group of individuals who are continuesly improving, porting and extend the product.

Iometer – IOPS

We don't normally see hybrid SLC cache SSDs run out of steam on the first test, but, well, these did. Not only did they, but the performance drops to a very low level almost immediately, not to mention being very inconsistent.

The Web Server test is read only, showing that so long as we are not writing, all three capacities of the Trion 100 had no issue here.

Well we got into the mixed read/write workloads and everything fell apart for the Trion 100's once again.

I'd like to say more, but I don't really have more to say other than don't plan on hitting a Trion 100 with any sort of mixed workload that involves writes.

Iometer – Average Transaction Time

For SSD reviews, HDD results are removed as they throw the scale too far to tell any meaningful difference in the results. Queue depth has been reduced to 8 to further clarify the results (especially as typical consumer workloads rarely exceed QD=8). Some notes for interpreting results:

  • Times measured at QD=1 can double as a value of seek time (in HDD terms, that is).
  • A 'flatter' line means that drive will scale better and ramp up its IOPS when hit with multiple requests simultaneously, especially if that line falls lower than competing units.

We can see in this 'zoomed in' QD 1-4 area that the Trion 100's approach ~2x the latency of competing SSDs wherever writes are included in the workload. This does not bode well for the Trion.

YAPT (random)

YAPT (yet another performance test) is a benchmark recommended by a pair of drive manufacturers and was incredibly difficult to locate as it hasn't been updated or used in quite some time.  That doesn't make it irrelevant by any means though, as the benchmark is quite useful.  It creates a test file of about 100 MB in size and runs both random and sequential read and write tests with it while changing the data I/O size in the process.  The misaligned nature of this test exposes the read-modify-write performance of SSDs and Advanced Format HDDs.

Random reads – no problem for all SSDs tested, even the Trion 100's.

This test has no regard for 4k alignment, and it brings many SSDs to their knees rather quickly – especially the Trion 100's, but they fell apart even on our 4k aligned Iometer testing, so this was to be expected.

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