Re: [PATCH v4 1/3] scripts/simplebench: compare write request performance

2020-07-13 Thread Vladimir Sementsov-Ogievskiy
12.07.2020 20:49, Andrey Shinkevich wrote: The script 'bench_write_req.py' allows comparing performances of write request for two qemu-img binary files. An example with (qemu-img binary 1) and without (qemu-img binary 2) the applied patch "qcow2: skip writing zero buffers to empty COW areas" (git

[PATCH v4 1/3] scripts/simplebench: compare write request performance

2020-07-12 Thread Andrey Shinkevich
The script 'bench_write_req.py' allows comparing performances of write request for two qemu-img binary files. An example with (qemu-img binary 1) and without (qemu-img binary 2) the applied patch "qcow2: skip writing zero buffers to empty COW areas" (git commit ID: c8bb23cbdbe32f5) has the followin