Commits on Nov 13, 2024

1. groot/riofs: align default compression settings w/ ROOT …

   groot was using flate.BestCompression (zlib and level=9) whereas
   ROOT/C++ is using flate.BestSpeed (zlib and level=1).
   
   This CL configures groot to use flate.DefaultCompression (and zlib).
   
   On "typical" payloads this amounts to:
   
   ```
   $> time ./new-dbg -zip=zlib-1 -o groot-zlib-1.root
   real 0m9.469s
   user 0m8.644s
   sys  0m0.872s
   
   $> time ./new-dbg -zip=zlib-6 -o groot-zlib-6.root
   real 0m10.832s
   user 0m10.422s
   sys  0m0.972s
   
   $> time ./new-dbg -zip=zlib-9 -o groot-zlib-9.root ([email protected] default)
   real 0m32.415s
   user 0m32.550s
   sys  0m1.086s
   ```
   
   and for the disk sizes:
   ```
   $> ll
   total 510M
   87M Nov 12 15:19 groot-zlib-1.root
   77M Nov 12 15:18 groot-zlib-6.root
   67M Nov 12 15:19 groot-zlib-9.root ([email protected] default)
   ```
   
   Signed-off-by: Sebastien Binet <[email protected]>

   

   sbinet committed Nov 13, 2024
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