Alan Cox 9e4e511499 Change the order in which the file name, arguments, environment, and ... shell command are stored in exec*()'s demand-paged string buffer. For a "buildworld" on an 8GB amd64 multiprocessor, the new order reduces the number of global TLB shootdowns by 31%. It also eliminates about 330k page faults on the kernel address space. Change exec_shell_imgact() to use "args->begin_argv" consistently as the start of the argument and environment strings. Previously, it would sometimes use "args->buf", which is the start of the overall buffer, but no longer the start of the argument and environment strings. While I'm here, eliminate unnecessary passing of "&length" to copystr(), where we don't actually care about the length of the copied string. Clean up the initialization of the exec map. In particular, use the correct size for an entry, and express that size in the same way that is used when an entry is allocated. The old size was one page too large. (This discrepancy originated in 2004 when I rewrote exec_map_first_page() to use sf_buf_alloc() instead of the exec map for mapping the first page of the executable.) Reviewed by: kib		2010-07-25 17:43:38 +00:00
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default_pager.c	Implement global and per-uid accounting of the anonymous memory. Add	2009-06-23 20:45:22 +00:00
device_pager.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
memguard.c	Start copyright notice with /*-	2010-04-07 16:29:10 +00:00
memguard.h	Start copyright notice with /*-	2010-04-07 16:29:10 +00:00
phys_pager.c	Handle busy status of the page in a way expected for pager_getpage().	2010-05-03 19:19:58 +00:00
pmap.h	Roughly half of a typical pmap_mincore() implementation is machine-	2010-05-24 14:26:57 +00:00
redzone.c	Fix REDZONE(9) on amd64 and perhaps other 64 bit targets -- ensure the space	2008-08-13 17:32:48 +00:00
redzone.h
sg_pager.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
swap_pager.c	Call vm_page_deactivate() rather than vm_page_dontneed() in	2010-05-09 16:27:42 +00:00
swap_pager.h
uma.h	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
uma_core.c	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
uma_dbg.c	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
uma_dbg.h
uma_int.h	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
vm.h	Replace VM_PROT_OVERRIDE_WRITE by VM_PROT_COPY. VM_PROT_OVERRIDE_WRITE has	2009-11-26 05:16:07 +00:00
vm_contig.c	With the demise of page coloring, the page queue macros no longer serve any	2010-07-02 15:02:51 +00:00
vm_extern.h	o) Add a VM find-space option, VMFS_TLB_ALIGNED_SPACE, which searches the	2010-04-18 22:32:07 +00:00
vm_fault.c	Use vm_page_prev() instead of vm_page_lookup() in the implementation of	2010-07-02 19:59:18 +00:00
vm_glue.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
vm_init.c	Change the order in which the file name, arguments, environment, and	2010-07-25 17:43:38 +00:00
vm_kern.c	The pages allocated by kmem_alloc_attr() and kmem_malloc() are unmanaged.	2010-05-03 07:08:16 +00:00
vm_kern.h	Enable the creation of a kmem map larger than 4GB.	2008-07-05 19:34:33 +00:00
vm_map.c	Introduce a helper function vm_page_find_least(). Use it in several places,	2010-07-04 11:13:33 +00:00
vm_map.h	o) Add a VM find-space option, VMFS_TLB_ALIGNED_SPACE, which searches the	2010-04-18 22:32:07 +00:00
vm_meter.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_mmap.c	Push down page queues lock acquisition in pmap_enter_object() and	2010-05-26 18:00:44 +00:00
vm_object.c	Several cleanups for the r209686:	2010-07-04 19:02:32 +00:00
vm_object.h	VI_OBJDIRTY vnode flag mirrors the state of OBJ_MIGHTBEDIRTY vm object	2009-12-21 12:29:38 +00:00
vm_page.c	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_page.h	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_pageout.c	Push down the acquisition of the page queues lock into	2010-07-02 20:56:22 +00:00
vm_pageout.h	Make vm_contig_grow_cache() extern, and use it when vm_phys_alloc_contig()	2010-06-04 06:35:36 +00:00
vm_pager.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_pager.h	Reimplement vm_object_page_clean(), using the fact that vm object memq	2010-07-04 11:26:56 +00:00
vm_param.h	On Alan's advice, rather than do a wholesale conversion on a single	2010-04-30 00:46:43 +00:00
vm_phys.c	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_phys.h	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_reserv.c	Previously, when vm_page_free_toq() was performed on a page belonging to	2009-04-11 09:09:00 +00:00
vm_reserv.h	Introduce vm_reserv_reclaim_contig(). This function is used by	2008-04-06 18:09:28 +00:00
vm_unix.c	Remove execute permission from the memory allocated by sbrk().	2009-04-11 22:34:08 +00:00
vm_zeroidle.c	Split P_NOLOAD into a per-thread flag (TDF_NOLOAD).	2009-11-03 16:46:52 +00:00
vnode_pager.c	Minimize the use of the page queues lock for synchronizing access to the	2010-06-02 15:46:37 +00:00
vnode_pager.h	Do not sleep for vnode lock while holding map lock in vm_fault. Try to	2009-02-08 20:23:46 +00:00