dwarfs 0.7.3 doesn't use section index properly about dwarfs

[mhx]

Thanks for your report. I can reproduce this and I think I know what the problem is. I'll look into this as soon as possible (very likely in the next two days) and will definitely release a fix.

[mhx]

$ hyperfine -p 'dd of=test.dwarfs oflag=nocache conv=notrunc,fdatasync count=0' -w 1 -L dwarfs ./dwarfs-0.7.2-Linux-x86_64/sbin/dwarfs,./dwarfs-0.7.3-Linux-x86_64/sbin/dwarfs,./dwarfs '{dwarfs} test.dwarfs mnt; umount mnt'
Benchmark 1: ./dwarfs-0.7.2-Linux-x86_64/sbin/dwarfs test.dwarfs mnt; umount mnt
  Time (mean ± σ):      14.1 ms ±   1.8 ms    [User: 8.0 ms, System: 2.0 ms]
  Range (min … max):    11.8 ms …  21.3 ms    121 runs
 
Benchmark 2: ./dwarfs-0.7.3-Linux-x86_64/sbin/dwarfs test.dwarfs mnt; umount mnt
  Time (mean ± σ):      3.709 s ±  0.032 s    [User: 0.019 s, System: 0.442 s]
  Range (min … max):    3.668 s …  3.791 s    10 runs
 
Benchmark 3: ./dwarfs test.dwarfs mnt; umount mnt
  Time (mean ± σ):      13.4 ms ±   2.5 ms    [User: 4.0 ms, System: 4.8 ms]
  Range (min … max):    10.5 ms …  35.1 ms    210 runs
 
Summary
  ./dwarfs test.dwarfs mnt; umount mnt ran
    1.05 ± 0.24 times faster than ./dwarfs-0.7.2-Linux-x86_64/sbin/dwarfs test.dwarfs mnt; umount mnt
  276.82 ± 51.82 times faster than ./dwarfs-0.7.3-Linux-x86_64/sbin/dwarfs test.dwarfs mnt; umount mnt

[mhx]

Fixed in v0.7.4.