* [Bug 1270] drivers/dma/skeleton/ is not setting pthread affinity based on the lcore shared as arguments
@ 2023-08-02 12:26 bugzilla
2023-10-20 6:39 ` bugzilla
0 siblings, 1 reply; 2+ messages in thread
From: bugzilla @ 2023-08-02 12:26 UTC (permalink / raw)
To: dev
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https://bugs.dpdk.org/show_bug.cgi?id=1270
Bug ID: 1270
Summary: drivers/dma/skeleton/ is not setting pthread affinity
based on the lcore shared as arguments
Product: DPDK
Version: 23.07
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: critical
Priority: Normal
Component: other
Assignee: dev@dpdk.org
Reporter: vipin.varghese@amd.com
Target Milestone: ---
Issue: when using dpdk skeleton DMA with lcore arguments, we expect the
Software DMA to be affinitized to the selected lcore. Currently this is not
working.
Example: `./buildgcc/app/dpdk-test-dma-perf --config app/test-dma-perf/my.ini
--log-level=pmd.dma,8`
Logs:
```
config file parsing...
config file parsing complete.
Running cases...
Running case 1
EAL: Detected CPU lcores: 32
EAL: Detected NUMA nodes: 4
EAL: Detected static linkage of DPDK
EAL: Selected IOVA mode 'VA'
EAL: No free 2048 kB hugepages reported on node 0
EAL: No free 2048 kB hugepages reported on node 1
EAL: No free 2048 kB hugepages reported on node 2
EAL: No free 2048 kB hugepages reported on node 3
skeldma_parse_vdev_args(): Parse lcore_id = 20
skeldma_probe(): Create dma_skeleton dmadev with lcore-id 20
TELEMETRY: No legacy callbacks, legacy socket not created
Number of used lcores: 31.
Running scenario 1
Number of used dmadevs: 1.
Start testing....
lcore 3, DMA dma_skeleton, DMA Ring Size: 1024, Kick Batch Size: 32.
Average Cycles/op: 526, Buffer Size: 64 B, Buffer Number: 81920, Memory: 10.00
MB, Frequency: 3.840 Ghz.
```
Current Behavior: currently dma core is running on free available core.
Configuration:
```
[case1]
│·································································
type=DMA_MEM_COPY
│·································································
mem_size=10
│·································································
buf_size=64,8192,2,MUL
│·································································
dma_ring_size=1024
│·································································
kick_batch=32
│·································································
src_numa_node=0
│·································································
dst_numa_node=0
│·································································
cache_flush=0
│·································································
test_seconds=2
│·································································
lcore_dma=lcore3@dma_skeleton
│·································································
eal_args=--in-memory --vdev=dma_skeleton,lcore=20 --no-pci -l1-31
```
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* [Bug 1270] drivers/dma/skeleton/ is not setting pthread affinity based on the lcore shared as arguments
2023-08-02 12:26 [Bug 1270] drivers/dma/skeleton/ is not setting pthread affinity based on the lcore shared as arguments bugzilla
@ 2023-10-20 6:39 ` bugzilla
0 siblings, 0 replies; 2+ messages in thread
From: bugzilla @ 2023-10-20 6:39 UTC (permalink / raw)
To: dev
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https://bugs.dpdk.org/show_bug.cgi?id=1270
David Marchand (david.marchand@redhat.com) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |david.marchand@redhat.com
Resolution|--- |FIXED
--- Comment #4 from David Marchand (david.marchand@redhat.com) ---
Fixed in commit 2f9afbe4f6fc ("dma/skeleton: fix thread affinity").
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