2 Commits

Author	SHA1	Message	Date
Pawel Jakub Dawidek	24e1fdcd1a	- Allow to specify the byte which will be used for filling read buffer. ... - Improve sysctl description a bit. Submitted by: Ivan Voras <ivoras@gmail.com>	2005-12-08 23:06:59 +00:00
Pawel Jakub Dawidek	565bc10111	Add a very simple and small GEOM class - ZERO. ... It creates very huge provider (41PB) /dev/gzero. On BIO_READ request it zero-fills bio_data and on BIO_WRITE it does nothing. You can also set kern.geom.zero.clear sysctl to 0 to do nothing even for BIO_READ. I'm using it for performance testing where it is very helpful. MFC after: 3 days	2005-07-25 10:03:16 +00:00