bug#62899: Performance regression in cached ‘guix shell’

Ludovic Courtès skribis: > $ time guix shell -D guix -- true > > real0m0.596s > user0m0.716s > sys 0m0.064s > $ strace -c guix shell -D guix -- true > % time seconds usecs/call callserrors syscall > -- --- --- - - -- [.

bug#62899: Performance regression in cached ‘guix shell’

Hello! I noticed that ‘guix shell’ had become relatively slow on cache hits, as in this example: --8<---cut here---start->8--- $ time guix shell -D guix -- true real0m0.596s user0m0.716s sys 0m0.064s $ strace -c guix shell -D guix -- true % time