blob: ff4f0552f1cbf100915db252840a67ace97ae1b1 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
graphic: 0.784
device: 0.653
semantic: 0.477
performance: 0.415
files: 0.408
boot: 0.312
vnc: 0.306
socket: 0.188
permissions: 0.165
PID: 0.162
network: 0.152
debug: 0.068
other: 0.056
KVM: 0.006
NVMe SQ processing gets stuck when IO queue size is small (for example 4)
Steps to reproduce:
1. Get OSv repo with the NVMe driver and build OSv with the 'Hello World' example:
```
git clone https://github.com/wkozaczuk/osv.git
cd osv
git checkout nvme_refined
git submodule update --init --recursive
./scripts/setup.py
./scripts/build image=native-example fs=zfs -j$(nproc)
```
2. Run OSv with NVme on and point to your version of QEMU built with tracing enabled:
```
./scripts/run.py --qemu-path /home/wkozaczuk/projects/qemu/build/qemu-system-x86_64 --nics=0 --nvme -c 1 --pass-arg "--trace pci_nvme_*"
```
Additional information:
I am adding both full QEMU logs with NVMe tracing enabled and diff of my changes to QEMU code to add extra logging.
|