Gregory's Server
@caronte Okay, tried btrfs which has all those same features: 2.7 seconds. And this was on a machine under load. Still more than twice as fast.
Linux's VFS subsystem is significantly faster than macOS', that's a fact and anyone who has managed large git trees on either OS (and Windows for that matter) will tell you how much smoother it is under Linux ;)
@caronte Let's try some more VFS benchmarks. This time with a hot cache, so filesystem shouldn't matter much. Still btrfs on the Linux side:
ls -alR linux-6.3.3 > /dev/nullLinux: 0.26, macOS 1.00
Linux is 4 times faster at enumerating/stat()ing files.
time tar cf /dev/null linux-6.3.3Linux 0.55, macOS 2.7
Linux is 5 times faster than macOS at reading a full Linux kernel tree from page cache.
Seriously, the difference is that huge. And I had to use a tmpfs on Linux instead of /dev/null since otherwise GNU tar is smart enough to optimize the actual data copy away.
@caronte Let's try some more VFS benchmarks. This time with a hot cache, so filesystem shouldn't matter much. Still btrfs on the Linux side:
ls -alR linux-6.3.3 > /dev/nullLinux: 0.26, macOS 1.00
Linux is 4 times faster at enumerating/stat()ing files.
time tar cf /dev/null linux-6.3.3Linux 0.55, macOS 2.7