Re: [PATCH v7 21/21] scripts/simplebench: add bench_prealloc.py

2020-11-13 Thread Max Reitz
On 13.11.20 19:00, Vladimir Sementsov-Ogievskiy wrote: 13.11.2020 19:24, Max Reitz wrote: On 21.10.20 16:58, Vladimir Sementsov-Ogievskiy wrote: Benchmark for new preallocate filter. Example usage: ./bench_prealloc.py ../../build/qemu-img \ ssd-ext4:/path/to/mount/point \    

Re: [PATCH v7 21/21] scripts/simplebench: add bench_prealloc.py

2020-11-13 Thread Vladimir Sementsov-Ogievskiy
13.11.2020 19:24, Max Reitz wrote: On 21.10.20 16:58, Vladimir Sementsov-Ogievskiy wrote: Benchmark for new preallocate filter. Example usage: ./bench_prealloc.py ../../build/qemu-img \ ssd-ext4:/path/to/mount/point \ ssd-xfs:/path2 hdd-ext4:/path3 hdd-xfs:/path4 The ben

Re: [PATCH v7 21/21] scripts/simplebench: add bench_prealloc.py

2020-11-13 Thread Max Reitz
On 21.10.20 16:58, Vladimir Sementsov-Ogievskiy wrote: Benchmark for new preallocate filter. Example usage: ./bench_prealloc.py ../../build/qemu-img \ ssd-ext4:/path/to/mount/point \ ssd-xfs:/path2 hdd-ext4:/path3 hdd-xfs:/path4 The benchmark shows performance improvement

[PATCH v7 21/21] scripts/simplebench: add bench_prealloc.py

2020-10-21 Thread Vladimir Sementsov-Ogievskiy
Benchmark for new preallocate filter. Example usage: ./bench_prealloc.py ../../build/qemu-img \ ssd-ext4:/path/to/mount/point \ ssd-xfs:/path2 hdd-ext4:/path3 hdd-xfs:/path4 The benchmark shows performance improvement (or degradation) when use new preallocate filter with qcow2