Windows has historically been pretty poor at handling concurrent I/O to the same device. I've seen circa 200M/sec sequential disk throughput fall to 10M/sec or so simply by trying to run another operation concurrently. The I/O scheduler seems heavily weighted for latency rather than throughput.
Comments
Windows has historically been pretty poor at handling concurrent I/O to the same device. I've seen circa 200M/sec sequential disk throughput fall to 10M/sec or so simply by trying to run another operation concurrently. The I/O scheduler seems heavily weighted for latency rather than throughput.
Maybe they optimize for latency because NTFS still fragments really badly.