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post #1 of 7 (permalink) Old 02-14-2019, 05:30 AM - Thread Starter
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PCIe Bandwidth Benchmark?

Does anyone know of a modern PCIe bandwidth benchmark? There used to be one floating around on the Internet about a decade ago that would do copy operations to/from a GPU. It must have fallen out of popularity, however, as I cannot seem to find it anymore. Does anyone else know of one?

I am in need of a way to try and saturate a PCIe link on a system as part of an investigation into instability.

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post #2 of 7 (permalink) Old 02-14-2019, 12:44 PM
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Hi,
GPU-Z ?
It has a render test.
Then just monitor with hwinfo pci-e slot usage
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post #3 of 7 (permalink) Old 02-14-2019, 02:28 PM - Thread Starter
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That is interesting, but unfortunately a render test is slightly different from what I'm after. I just need something that moves as much data to/from a GPU as possible as a means to saturate the PCIe link's bandwidth. Rendering does use some bandwidth, but it isn't nearly as intensive. About ten years ago there was a tool called "PCIeBandwidthTest.exe" which seems to have disappeared. Nonetheless, thank you for your reply.

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post #4 of 7 (permalink) Old 02-14-2019, 03:00 PM
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Quote: Originally Posted by Particle View Post
That is interesting, but unfortunately a render test is slightly different from what I'm after. I just need something that moves as much data to/from a GPU as possible as a means to saturate the PCIe link's bandwidth. Rendering does use some bandwidth, but it isn't nearly as intensive. About ten years ago there was a tool called "PCIeBandwidthTest.exe" which seems to have disappeared. Nonetheless, thank you for your reply.

This?

https://forums.evga.com/PCIE-bandwid...-m1972266.aspx

Download here.

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post #5 of 7 (permalink) Old 02-14-2019, 06:08 PM - Thread Starter
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It was very much like that, but the one I'm thinking of wasn't dependent upon CUDA. I have to test with a Radeon unfortunately. Good find though!

The closest I've come is this old thread which had the first release, but the download link is old and doesn't work:
http://www.xtremesystems.org/forums/...bandwidth-test

I used to have it at one point. This old image can be found in an image search for "SR5690" back when I ran it on an old dual socket Opteron machine:
http://www.pcrpg.org/pics/computer/s...espeedrun1.png

It looks like it was actually called "PCIeSpeedTest.exe".


Last edited by Particle; 02-14-2019 at 06:13 PM.
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post #6 of 7 (permalink) Old 02-14-2019, 06:22 PM
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aida64 has the gpgpu benchmark that shows read and write to the gpu, and it responds directly with PCIE frequency.


If that is what you are after. Im not 100% sure if Im on the same page.
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post #7 of 7 (permalink) Old 02-16-2019, 09:17 AM - Thread Starter
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That's pretty interesting. That is precisely the type of test I need. I played with the trial last night a bit, but I'm hoping to find something that can run more continuously. I have a system that I *think* is entering a protective shutdown due to some glitch with high bandwidth PCIe transfers when I saturate a RAID controller. If I could replicate that by saturating the bus with a GPU instead of another storage controller, that would help me confirm it.

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