freebsd-skq/sys/geom
Pawel Jakub Dawidek 4c55f05b89 Implement "FAST" mode for GEOM_STRIPE class and turn it on by default.
In this mode you can setup even very small stripe size and you can be
sure that only one I/O request will be send to every disks in stripe.
It consumes some more memory, but if allocation fails, it will fall
back to "ECONOMIC" mode.

It is about 10 times faster for small stripe size than "ECONOMIC" mode
and other RAID0 implementations. It is even recommended to use this
mode and small stripe size, so our requests are always splitted.

One can still use "ECONOMIC" mode by setting kern.geom.stripe.fast to 0.
It is also possible to setup maximum memory which "FAST" mode can consume,
by setting kern.geom.stripe.maxmem from /boot/loader.conf.
2004-07-09 14:30:09 +00:00
..
bde kthread_exit() no longer requires Giant, so don't force callers to acquire 2004-03-05 22:42:17 +00:00
concat - Add 'stop' command, which works just like 'destroy' command, but sounds 2004-07-05 21:16:37 +00:00
gate Remove unused argument for good. 2004-07-01 15:42:03 +00:00
label Add missing argument. 2004-07-06 17:06:54 +00:00
nop Fix format string. 2004-06-07 13:40:40 +00:00
stripe Implement "FAST" mode for GEOM_STRIPE class and turn it on by default. 2004-07-09 14:30:09 +00:00
vinum g_clone_bio() can fail, be ready for this. 2004-07-05 13:24:22 +00:00
geom_aes.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_apple.c Move the name attribute to the end of the conftxt line to simplify 2004-04-01 01:33:37 +00:00
geom_bsd_enc.c Use __FBSDID(). 2003-06-11 06:49:16 +00:00
geom_bsd.c Do not check error code from closing ->access() calls, we know they succeed. 2004-02-14 17:59:44 +00:00
geom_ccd.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_ctl.c Do the dreaded s/dev_t/struct cdev */ 2004-06-16 09:47:26 +00:00
geom_ctl.h Simplify the GEOM OAM api: Drop the request type, and let everything 2003-06-01 13:47:51 +00:00
geom_dev.c Duplicate the securelevel check from spec_vnops.c here. 2004-06-19 09:00:53 +00:00
geom_disk.c Fix regression in last commit. 2004-06-29 08:33:58 +00:00
geom_disk.h Change the disk(9) API in order to make device removal more robust. 2004-02-18 21:36:53 +00:00
geom_dump.c Rearrange some of the GEOM debugging tools to be more structured. 2004-03-10 08:49:08 +00:00
geom_event.c Make withering water tight. 2004-07-08 16:17:14 +00:00
geom_fox.c Do not check error code from closing ->access() calls, we know they succeed. 2004-02-14 17:59:44 +00:00
geom_gpt.c Allow disks with a GPT to be used on big-endian machines. The GPT is 2004-04-30 05:05:39 +00:00
geom_int.h Make withering water tight. 2004-07-08 16:17:14 +00:00
geom_io.c The g_up and g_down threads use a local 'mymutex' mutex to allow WITNESS 2004-06-26 23:27:42 +00:00
geom_kern.c don't call sbuf_clear() right after sbuf_new(), it is not necessary. 2004-02-10 10:54:19 +00:00
geom_mbr_enc.c Use __FBSDID(). 2003-06-11 06:49:16 +00:00
geom_mbr.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_mirror.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_pc98_enc.c Use __FBSDID(). 2003-06-11 06:49:16 +00:00
geom_pc98.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_slice.c We only need to check for overlaps if we increasing access counts. 2004-07-04 13:44:48 +00:00
geom_slice.h Add a destroy_geom method to the slice "library". 2003-05-31 19:25:05 +00:00
geom_subr.c Only detach consumers which are attached when we wither stuff away. 2004-07-09 14:06:17 +00:00
geom_sunlabel_enc.c Add SVR4-compatible VTOC-style elements to the Sun label. The 2004-06-01 20:18:25 +00:00
geom_sunlabel.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom_vol_ffs.c Remove the absolute count g_access_abs() function since experience has 2004-02-12 22:42:11 +00:00
geom.h Kill g_access_rel() already now before we send it down 5-stable 2004-06-21 20:31:49 +00:00
notes A note about which #include files may be used where. 2003-03-23 10:08:13 +00:00