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Please explain "WHCK Trim Perormance Test"

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I want know WHCK's Trim Performance Test Workload.

But when that test end I just see TrimPer.txt and TrimPerf.wtl or XXX.hckx files.

It has just only Run Time Performance Test Logs. 

Here is real log of TRIM Performance test.

I want know what is "Iterations :20" ? or "Iterations: 120"

what's that workload?

Anybody knows this mean?

Test device ID: \\.\physicaldrive1, Log drive: E:
Start: Random Trim 1 range 65535 Sector on 5000ms intervals, TUID=
Spawning 1 threads.
3384 - Random Trim 1 range 65535 Sector on 5000ms intervals thread started
3384 - Writeback requested.
3384 - Stop event requested. Iterations: 120
Start processing the ETW events.
OpenTrace: Error code = 0x0
ProcessTrace: Error code = 0x0
CloseTrace: Error code = 0x0

Processed 162 ETW entries, matched 120 entries.
Trim - Count      : 120
Trim - Max latency:   3.287 ms
Trim - Avg latency:   3.118 ms
End: Pass, Random Trim 1 range 65535 Sector on 5000ms intervals, TUID=, Repro=TrimPerf.exe  /DriveNumber 1 /LogDriveLetter E: /DeviceType StorConsumer /Scenario Performance /DiskSize 0 /Cooldown 2

Thank you.


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