Jetpack 5.1.2 performance degradation vs jetpack 4.5

[yehonatans68sw4]

Hi,

We upgraded our application from Jetpack 4.5 to Jetpack 5.1.2.
After that we faced performance degradation of 70msec for our cuda application.
For both jetpacks the power policy is MAXN.
In the code the component which was performance degraded based on CUSPARSE and trust pair sort of 100000K elements.
I tried my code with default Cuda 11.4 and also install Cuda 11.8 but the performance were the same.
In parallel to this there is small math code which runs in the host side
The performance combination of those is 10 msec and 150 msec of the bottle neck using jetpack 4.5.

The performance combination of those is 50msec and 220msec of the bottle neck using jetpack 5.1.2.

There is any issue about performance degradation like this?

[AastaLLL]

Hi,

This is not expected.
Could you share a reproducible sample so we can check it further?

Thanks.

[kayccc]

Is this still an issue to support? Any result can be shared? Thanks

[yehonatans68sw4]

We have facing a benchmark issue.
Because this release is urgent we switched to jetpack 4.6.4 which does not has performance degradation.
When we will return to a newer version I will update the results