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| /freebsd-11-stable/sys/geom/stripe/ | ||
| H A D | g_stripe.c | diff 131878 Fri Jul 09 12:30:09 MDT 2004 pjd 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. |
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