On Mon, 9 Apr 2007, Dan Nelson wrote:
In the last episode (Apr 08), Garrett Cooper said:I'm trying to see whether it's possible to grab the list of files open from a kernel level on FreeBSD, using a userland library interface as opposed to lsof. I'm trying to see if there's a simple tool that I could code in C/C++ if necessary to spin down disks automatically to save power and disk life. Plus, I think that lsof actually would probe the devices and 'wake them up' instead of keeping them as-is. However, I could be wrong so if I am please let me know.Take a look at how /usr/bin/fstat does it. There is apparently a "kern.file" sysctl that holds the open file table, but fstat digs through kernel memory. -- Dan Nelson [EMAIL PROTECTED]
Ok, excellent. Thanks for more info. I'm thinking of changing "spinning down" to "adjusting acoustics level", i.e. reduce spindle speed to avoid pricey spin-downs, which may cause long-term serious damage to disks. Trying to keep my electric bills down and keep my disk life up :). -Garrett _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
