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| author | Daniel P. Berrangé <berrange@redhat.com> | 2025-06-10 13:37:02 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2025-06-12 13:40:16 -0400 |
| commit | 3438eabaf4f8ae58b6c47f1727938d1d7dac4823 (patch) | |
| tree | 3cd54d6ea9f0f653d37c111195381b92a8c0f48b /scripts/tracetool/backend/ust.py | |
| parent | 7eeb1d3acc175813ad3d5e824f26123e0992093a (diff) | |
| download | focaccia-qemu-3438eabaf4f8ae58b6c47f1727938d1d7dac4823.tar.gz focaccia-qemu-3438eabaf4f8ae58b6c47f1727938d1d7dac4823.zip | |
hw/ppc/pnv_occ: skip automatic zero-init of large struct
The 'occ_model_tick' method has a 12k struct used for copying data between guest and host. Skip the automatic zero-init of this struct to eliminate the performance overhead in the I/O hot path. The 'dynamic_data' buffer will be fully initialized when reading data from the guest. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Message-id: 20250610123709.835102-25-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/tracetool/backend/ust.py')
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