freebsd-skq/sys/vm
dillon 4c1e280de7 Remove inappropriate VOP_FSYNC from vm_object_page_clean(). The fsync
syncs the entire underlying file rather then just the requested range,
    resulting in huge inefficiencies when the VM system is articulated in
    a certain way.  The VOP_FSYNC was also found to massively reduce NFS
    performance in certain cases.

    Change MADV_DONTNEED and MADV_FREE to call vm_page_dontneed() instead
    of vm_page_deactivate().  Using vm_page_deactivate() causes all
    inactive and cache pages to be recycled before the dontneed/free page
    is recycled, effectively flushing our entire VM inactive & cache
    queues continuously even if only a few pages are being actively MADV
    free'd and reused (such as occurs with a sequential scan of a
    memory-mapped file).

Reviewed by:	Alan Cox <alc@cs.rice.edu>, David Greenman <dg@root.com>
1999-09-17 05:48:36 +00:00
..
default_pager.c
default_pager.h
device_pager.c
pmap.h
swap_pager.c Fix a number of spl bugs related to reserving and freeing swap space. 1999-09-17 05:09:24 +00:00
swap_pager.h Fix a number of spl bugs related to reserving and freeing swap space. 1999-09-17 05:09:24 +00:00
vm_extern.h
vm_fault.c
vm_glue.c
vm_inherit.h
vm_init.c
vm_kern.c
vm_kern.h
vm_map.c
vm_map.h Add 'lastr' field to vm_map_entry in preparation for its removal 1999-09-17 05:40:17 +00:00
vm_meter.c
vm_mmap.c
vm_object.c Remove inappropriate VOP_FSYNC from vm_object_page_clean(). The fsync 1999-09-17 05:48:36 +00:00
vm_object.h
vm_page.c
vm_page.h
vm_pageout.c
vm_pageout.h
vm_pager.c
vm_pager.h
vm_param.h
vm_prot.h
vm_swap.c
vm_unix.c
vm_zone.c
vm_zone.h
vm.h
vnode_pager.c The vnode pager (used when you do file-backed mmaps) must use the 1999-09-17 05:17:59 +00:00
vnode_pager.h