Benchmark: timing 50 iterations of berkeley write, file print, file syswrite, file write...
berkeley write:  5 wallclock secs ( 5.17 usr +  0.02 sys =  5.19 CPU) @  9.63/s (n=50)
file print: 10 wallclock secs ( 4.38 usr +  4.00 sys =  8.38 CPU) @  5.97/s (n=50)
file syswrite: 11 wallclock secs ( 4.35 usr +  4.08 sys =  8.43 CPU) @  5.93/s (n=50)
file write: 10 wallclock secs ( 4.37 usr +  4.26 sys =  8.63 CPU) @  5.79/s (n=50)
                 Rate     file write file syswrite     file print berkeley write
file write     5.79/s             --           -2%            -3%           -40%
file syswrite  5.93/s             2%            --            -1%           -38%
file print     5.97/s             3%            1%             --           -38%
berkeley write 9.63/s            66%           62%            61%             --
Benchmark: timing 100 iterations of berkeley read, file read, file slurp, file sysread...
berkeley read:  4 wallclock secs ( 3.72 usr +  0.03 sys =  3.75 CPU) @ 26.67/s (n=100)
 file read:  5 wallclock secs ( 2.71 usr +  2.01 sys =  4.72 CPU) @ 21.19/s (n=100)
file slurp:  6 wallclock secs ( 3.88 usr +  2.03 sys =  5.91 CPU) @ 16.92/s (n=100)
file sysread:  4 wallclock secs ( 2.49 usr +  1.91 sys =  4.40 CPU) @ 22.73/s (n=100)
                Rate    file slurp     file read  file sysread berkeley read
file slurp    16.9/s            --          -20%          -26%          -37%
file read     21.2/s           25%            --           -7%          -21%
file sysread  22.7/s           34%            7%            --          -15%
berkeley read 26.7/s           58%           26%           17%            --