4 ms·
to my understanding it's not really IO (reading/writing bytes), but overhead on OpenFile/CloseFile being under AV/Defender inspection. I'm taking that understan
by CoolCold 3y ago
to my understanding it's not really IO (reading/writing bytes), but overhead on OpenFile/CloseFile being under AV/Defender inspection. I'm taking that understanding basing on https://www.youtube.com/watch?v=qbKGw8MQ0i8 https://www.youtube.com/watch?v=qbKGw8MQ0i8 with " "NTFS really isn't that bad" - Robert Collins (LCA 2020) "
> Why was rustup slow (3m30s to install (not including download time)) in early 2019 on Windows, and why isn't it slow (14s to install) now?
>Early in 2019 I was developing some things in Rustlang on Windows, got frustrated at the performance of rustup (the installer for rust) and looked for bug. I found one which blamed a combination of NTFS, small files and anti-virus software for the problem. This wasn't an entirely satisfactory answer to my mind. Fast forward a bit, and with a combination of changes to rustup and to Windows itself and rustup is now pleasantly usable.... which also improved performance for rustup on NFS mounted home directories.