The graphs on this page document the effectiveness of the new file descriptor allocation code.
You may want to inspect the source code of the benchmark program.
Measured on a 2.4 GHz hyperthreading Intel Pentium 4 with 1 GB PC3200 DDR memory.
Measured on a 600 MHz Digital EV56 with 256 MB memory.
Measured on a 266 MHz Sun UltraSparc IIi with 128 MB memory.
For comparison, here's a graph showing the performance of a stock -STABLE and a stock (post-patch) -CURRENT as of 2004/01/24:
Measured on an 800 MHz VIA C3 Samuel 2 with 256 MB PC133 SDRAM memory.