Commit 665e4d0e authored by Joanne Hugé's avatar Joanne Hugé

Regenerate report

parent c26ea32e
...@@ -90,24 +90,30 @@ Metadata | Minimum | Max ...@@ -90,24 +90,30 @@ Metadata | Minimum | Max
## Additional measures ## Additional measures
## Packet reception latency ## Packet transmission latency
Shuttle to A20, no XDP ### Shuttle to A20
With tracing and timestamps (some overhead): #### Measures done with tracing and timestamps (some overhead):
| Latency measured | min | avg | max | **Without XDP:**
| -------------------------------------- | ------ | ------ | ------ |
| IRQ -> RX SO_TIMESTAMP | 27us | 31us | 136us |
| RX SO_TIMESTAMP -> Userspace timestamp | 85us | 93us | 247us |
| IRQ -> Userspace timestamp | 112us | 124us | 383us |
| **Latency measured** | **min** | **avg** | **max** |
| -------------------------------------- | ------- | ------- | ------- |
| IRQ -> RX SO_TIMESTAMP | 27us | 31us | 136us |
| RX SO_TIMESTAMP -> Userspace timestamp | 85us | 93us | 247us |
| IRQ -> Userspace timestamp | 112us | 124us | 383us |
With timestamps (little overhead): **With XDP:**
| Latency measured | min | avg | max | IRQ -> XDP_REDIRECT : ~30us (more measures needs to be done)
| -------------------------------------- | ------ | ------ | ------ |
| Shuttle timestamp -> A20 timestamp | 88us | 88us | 300us | #### Measures done with timestamps (little overhead):
| RX SO_TIMESTAMP (A20) | 67us | 172us | 173us |
| TX SO_TIMESTAMP -> (Shuttle) | 2us | 18us | 20us | | **Latency measured** | | **Duration** | **Packets number** | **Interval** | **min** | **avg** | **max** |
| -------------------------------------- | ------ | ------------ | ------------------ | ------------ | ------- | ------ | ------ |
| Shuttle timestamp -> A20 timestamp | XDP | 2h45 | 50 100 000 | 250us | 22us | 24us | 173us |
| Shuttle timestamp -> A20 timestamp | no XDP | | | | 88us | 88us | 300us |
| RX SO_TIMESTAMP (A20) | no XDP | | | | 67us | 172us | 173us |
| TX SO_TIMESTAMP -> (Shuttle) | no XDP | | | | 2us | 18us | 20us |
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