cvs commit: src/sys/kern init_main.c kern_descrip.c sys_pipe.c uipc_syscalls.c uipc_usrreq.c vfs_syscalls.c src/sys/sys filedesc.h

Maxim Sobolev sobomax at
Thu Jan 15 06:07:13 PST 2004

Dag-Erling Smørgrav wrote:

> Dag-Erling Smorgrav <des at> writes:
>>  Log:
>>  New file descriptor allocation code, derived from similar code introduced
>>  in OpenBSD by Niels Provos.  The patch introduces a bitmap of allocated
>>  file descriptors which is used to locate available descriptors when a new
>>  one is needed.  It also moves the task of growing the file descriptor table
>>  out of fdalloc(), reducing complexity in both fdalloc() and do_dup().
> See for benchmark results.

Benchmarks look really cool! Are there any plans to backport it to RELENG_4?


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