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[BUG] RVFI agent & tandem mode simulation performance degradation #2556

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AnouarZajni opened this issue Oct 17, 2024 · 0 comments
Open
1 task done

[BUG] RVFI agent & tandem mode simulation performance degradation #2556

AnouarZajni opened this issue Oct 17, 2024 · 0 comments
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@zchamski
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Component:SpikeTandem Issue that impacts Spike Tandem operation CV32A60AX Part: Application configuration (former "step1") Type:Bug For bugs in the RTL, Documentation, Verification environment or Tool and Build system

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@AnouarZajni
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Is there an existing CVA6 bug for this?

  • I have searched the existing bug issues

Bug Description

Hi,
RVFI agent + spike Tandem is degrading considerably cva6 simulation time due to monitoring & scoreboarding CSRs in CSR_MAX_SIZE (4096) instead of CSR supported size (Actual cv32a65x number of CSRs is 187). uvma_rvfi and spike tandem should be parametrized to support only needed number of CSRs

Profiling coremark test with nocoverage, no logger and rvfi_disable_csr_check=1 give following results:

image
@AnouarZajni AnouarZajni added the Type:Bug For bugs in the RTL, Documentation, Verification environment or Tool and Build system label Oct 17, 2024
@AyoubJalali AyoubJalali added CV32A60AX Part: Application configuration (former "step1") Component:SpikeTandem Issue that impacts Spike Tandem operation labels Oct 17, 2024
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@zchamski zchamski

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Component:SpikeTandem Issue that impacts Spike Tandem operation CV32A60AX Part: Application configuration (former "step1") Type:Bug For bugs in the RTL, Documentation, Verification environment or Tool and Build system
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@JeanRochCoulon @zchamski @AyoubJalali @AnouarZajni