> Just a note to say glibc is getting better wrt to locking.
> Compare the results and trival test program here:
> http://lkml.org/lkml/2001/12/7/75
> That showed that for glibc 2.2.4, getc & putc
> were 669% slower than the unlocked versions.
>
> 4 years later and with 2.3.5-1ubuntu1, getc & putc
> are only 230% slower than the unlocked versions:
>
> $ dd bs=1MB count=100 if=/dev/zero | ./locked >/dev/null
> 100000000 bytes transferred in 3.709362 seconds (26958813 bytes/sec)
> $ dd bs=1MB count=100 if=/dev/zero | ./unlocked >/dev/null
> 100000000 bytes transferred in 1.602427 seconds (62405339 bytes/sec)
this could also mean that the unlocked version has gotten slower ;)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
