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	Commit message (Collapse)	Author	Age	Files	Lines
*	Rework pageout to handle multiple segments	Richard Braun	2016-09-21	1	-2/+2
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	As we're about to use a new HIGHMEM segment, potentially much larger than the existing DMA and DIRECTMAP ones, it's now compulsory to make the pageout daemon aware of those segments. And while we're at it, let's fix some of the defects that have been plaguing pageout forever, such as throttling, and pageout of internal versus external pages (this commit notably introduces a hardcoded policy in which as many external pages are selected before considering internal pages). * kern/slab.c (kmem_pagefree_physmem): Update call to vm_page_release. * vm/vm_page.c: Include <kern/counters.h> and <vm/vm_pageout.h>. (VM_PAGE_SEG_THRESHOLD_MIN_NUM, VM_PAGE_SEG_THRESHOLD_MIN_DENOM, VM_PAGE_SEG_THRESHOLD_MIN, VM_PAGE_SEG_THRESHOLD_LOW_NUM, VM_PAGE_SEG_THRESHOLD_LOW_DENOM, VM_PAGE_SEG_THRESHOLD_LOW, VM_PAGE_SEG_THRESHOLD_HIGH_NUM, VM_PAGE_SEG_THRESHOLD_HIGH_DENOM, VM_PAGE_SEG_THRESHOLD_HIGH, VM_PAGE_SEG_MIN_PAGES, VM_PAGE_HIGH_ACTIVE_PAGE_NUM, VM_PAGE_HIGH_ACTIVE_PAGE_DENOM): New macros. (struct vm_page_queue): New type. (struct vm_page_seg): Add new members `min_free_pages', `low_free_pages', `high_free_pages', `active_pages', `nr_active_pages', `high_active_pages', `inactive_pages', `nr_inactive_pages'. (vm_page_alloc_paused): New variable. (vm_page_pageable, vm_page_can_move, vm_page_remove_mappings): New functions. (vm_page_seg_alloc_from_buddy): Pause allocations and start the pageout daemon as appropriate. (vm_page_queue_init, vm_page_queue_push, vm_page_queue_remove, vm_page_queue_first, vm_page_seg_get, vm_page_seg_index, vm_page_seg_compute_pageout_thresholds): New functions. (vm_page_seg_init): Initialize the new segment members. (vm_page_seg_add_active_page, vm_page_seg_remove_active_page, vm_page_seg_add_inactive_page, vm_page_seg_remove_inactive_page, vm_page_seg_pull_active_page, vm_page_seg_pull_inactive_page, vm_page_seg_pull_cache_page): New functions. (vm_page_seg_min_page_available, vm_page_seg_page_available, vm_page_seg_usable, vm_page_seg_double_lock, vm_page_seg_double_unlock, vm_page_seg_balance_page, vm_page_seg_balance, vm_page_seg_evict, vm_page_seg_compute_high_active_page, vm_page_seg_refill_inactive, vm_page_lookup_seg, vm_page_check): New functions. (vm_page_alloc_pa): Handle allocation failure from VM privileged thread. (vm_page_info_all): Display additional segment properties. (vm_page_wire, vm_page_unwire, vm_page_deactivate, vm_page_activate, vm_page_wait): Move from vm/vm_resident.c and rewrite to use segments. (vm_page_queues_remove, vm_page_check_usable, vm_page_may_balance, vm_page_balance_once, vm_page_balance, vm_page_evict_once): New functions. (VM_PAGE_MAX_LAUNDRY, VM_PAGE_MAX_EVICTIONS): New macros. (vm_page_evict, vm_page_refill_inactive): New functions. * vm/vm_page.h: Include <kern/list.h>. (struct vm_page): Remove member `pageq', reuse the `node' member instead, move the `listq' and `next' members above `vm_page_header'. (VM_PAGE_CHECK): Define as an alias to vm_page_check. (vm_page_check): New function declaration. (vm_page_queue_fictitious, vm_page_queue_active, vm_page_queue_inactive, vm_page_free_target, vm_page_free_min, vm_page_inactive_target, vm_page_free_reserved, vm_page_free_wanted): Remove extern declarations. (vm_page_external_pagedout): New extern declaration. (vm_page_release): Update declaration. (VM_PAGE_QUEUES_REMOVE): Define as an alias to vm_page_queues_remove. (VM_PT_PMAP, VM_PT_KMEM, VM_PT_STACK): Remove macros. (VM_PT_KERNEL): Update value. (vm_page_queues_remove, vm_page_balance, vm_page_evict, vm_page_refill_inactive): New function declarations. * vm/vm_pageout.c (VM_PAGEOUT_BURST_MAX, VM_PAGEOUT_BURST_MIN, VM_PAGEOUT_BURST_WAIT, VM_PAGEOUT_EMPTY_WAIT, VM_PAGEOUT_PAUSE_MAX, VM_PAGE_INACTIVE_TARGET, VM_PAGE_FREE_TARGET, VM_PAGE_FREE_MIN, VM_PAGE_FREE_RESERVED, VM_PAGEOUT_RESERVED_INTERNAL, VM_PAGEOUT_RESERVED_REALLY): Remove macros. (vm_pageout_reserved_internal, vm_pageout_reserved_really, vm_pageout_burst_max, vm_pageout_burst_min, vm_pageout_burst_wait, vm_pageout_empty_wait, vm_pageout_pause_count, vm_pageout_pause_max, vm_pageout_active, vm_pageout_inactive, vm_pageout_inactive_nolock, vm_pageout_inactive_busy, vm_pageout_inactive_absent, vm_pageout_inactive_used, vm_pageout_inactive_clean, vm_pageout_inactive_dirty, vm_pageout_inactive_double, vm_pageout_inactive_cleaned_external): Remove variables. (vm_pageout_requested, vm_pageout_continue): New variables. (vm_pageout_setup): Wait for page allocation to succeed instead of falling back to flush, update double paging protocol with caller, add pageout throttling setup. (vm_pageout_scan): Rewrite to use the new vm_page balancing, eviction and inactive queue refill functions. (vm_pageout_scan_continue, vm_pageout_continue): Remove functions. (vm_pageout): Rewrite. (vm_pageout_start, vm_pageout_resume): New functions. * vm/vm_pageout.h (vm_pageout_continue, vm_pageout_scan_continue): Remove function declarations. (vm_pageout_start, vm_pageout_resume): New function declarations. * vm/vm_resident.c: Include <kern/list.h>. (vm_page_queue_fictitious): Define as a struct list. (vm_page_free_wanted, vm_page_external_count, vm_page_free_avail, vm_page_queue_active, vm_page_queue_inactive, vm_page_free_target, vm_page_free_min, vm_page_inactive_target, vm_page_free_reserved): Remove variables. (vm_page_external_pagedout): New variable. (vm_page_bootstrap): Don't initialize removed variable, update initialization of vm_page_queue_fictitious. (vm_page_replace): Call VM_PAGE_QUEUES_REMOVE where appropriate. (vm_page_remove): Likewise. (vm_page_grab_fictitious): Update to use list_xxx functions. (vm_page_release_fictitious): Likewise. (vm_page_grab): Remove pageout related code. (vm_page_release): Add `laundry' and `external' parameters for pageout throttling. (vm_page_grab_contig): Remove pageout related code. (vm_page_free_contig): Likewise. (vm_page_free): Remove pageout related code, update call to vm_page_release. (vm_page_wait, vm_page_wire, vm_page_unwire, vm_page_deactivate, vm_page_activate): Move to vm/vm_page.c.
*	Mark functions that don't return with attribute noreturn	Marin Ramesa	2013-12-17	1	-3/+3
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*	vm/vm_pageout.c: remove forward declarations	Marin Ramesa	2013-12-09	1	-0/+4
\| \| \| \| \|	* vm/vm_pageout.c (vm_pageout_continue, vm_pageout_scan_continue): Remove forward declarations. * vm/vm_pageout.h (vm_pageout_continue, vm_pageout_scan_continue): Add prototypes.
*	kern/startup.c: remove forward declarations	Marin Ramesa	2013-12-05	1	-0/+2
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* Makefrag.am: Include kern/bootstrap.h. Include vm/vm_init.h. Include device/device_init.h. * device/device_init.h: New file. Add copyright. [_DEVICE_DEVICE_INIT_H_]: Add ifndef. (device_service_create): Add prototype. * i386/i386/mp_desc.h (start_other_cpus): Add prototype. * kern/bootstrap.h: New file. Add copyright. [_KERN_BOOTSTRAP_H_]: Add ifndef. (bootstrap_create): Add prototype. * kern/sched_prim.h (idle_thread, sched_thread): Add prototypes. * kern/startup.c: Include kern/bootstrap.h. Include kern/startup.h. Include vm/vm_init.h. Include vm/vm_pageout.h. Include device/device_init.h. (vm_mem_init, vm_mem_bootstrap, init_timeout, machine_init, idle_thread, vm_pageout, reaper_thread, swapin_thread, sched_thread, bootstrap_create, device_service_create, cpu_launch_first_thread, start_kernel_threads, start_other_cpus, action_thread): Remove forward declarations. [NCPUS > 1] Include machine/mp_desc.h and kern/machine.h. * kern/startup.h: Include kern/thread.h. (cpu_launch_first_thread, start_kernel_threads): Add prototypes. * vm/vm_init.h: New file. Add copyright. [_VM_VM_INIT_H_]: Add ifndef. (vm_mem_init, vm_mem_bootstrap): Add prototypes. * vm/vm_pageout.h (vm_pageout): Add prototype.
*	2007-05-05 Thomas Schwinge <tschwinge@gnu.org>	Thomas Schwinge	2009-06-18	1	-2/+3
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	We're not in the eighties anymore. List arguments in function prototypes and definitions for a lot of symbols. Also drop some unused prototypes. I refrain from listing every changed symbol. * vm/memory_object.c: Do as described. * vm/memory_object.h: Likewise. * vm/pmap.h: Likewise. * vm/vm_external.c: Likewise. * vm/vm_external.h: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_fault.h: Likewise. * vm/vm_kern.h: Likewise. * vm/vm_map.c: Likewise. * vm/vm_map.h: Likewise. * vm/vm_pageout.h: Likewise. * vm/vm_user.h: Likewise. * vm/memory_object.h: Include <ipc/ipc_types.h>. * vm/pmap.h: Include <kern/thread.h>. * vm/vm_fault.h: Include <mach/vm_prot.h>, <vm/vm_map.h> and <vm/vm_types.h>. * vm/vm_map.h: Include <mach/vm_attributes.h> and <vm/vm_types.h>. (vm_map_t, VM_MAP_NULL): Remove type and definition. * vm/vm_object.h (vm_object_t, VM_OBJECT_NULL): Remove type and definition. * vm/vm_page.h: Include <vm/vm_types.h>. (vm_page_t, VM_PAGE_NULL): Remove type and definition. * vm/vm_user.h: Include <mach/std_types.h>. * kern/task.h: Include <vm/vm_types.h> instead of <vm/vm_map.h>. * vm/vm_types.h: New file: the above-removed types and definitions.
*	2001-04-04 Roland McGrath <roland@frob.com>	Roland McGrath	2001-04-05	1	-7/+7
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* ddb/db_access.h: Fix obsolescent #else/#endif syntax. * ddb/db_aout.c: Likewise. * ddb/db_break.c: Likewise. * ddb/db_break.h: Likewise. * ddb/db_command.c: Likewise. * ddb/db_command.h: Likewise. * ddb/db_cond.c: Likewise. * ddb/db_examine.c: Likewise. * ddb/db_expr.c: Likewise. * ddb/db_ext_symtab.c: Likewise. * ddb/db_input.c: Likewise. * ddb/db_lex.c: Likewise. * ddb/db_macro.c: Likewise. * ddb/db_mp.c: Likewise. * ddb/db_output.c: Likewise. * ddb/db_print.c: Likewise. * ddb/db_run.c: Likewise. * ddb/db_sym.c: Likewise. * ddb/db_task_thread.c: Likewise. * ddb/db_task_thread.h: Likewise. * ddb/db_trap.c: Likewise. * ddb/db_variables.c: Likewise. * ddb/db_watch.c: Likewise. * ddb/db_watch.h: Likewise. * ddb/db_write_cmd.c: Likewise. * device/dev_pager.c: Likewise. * device/device_port.h: Likewise. * device/device_types_kernel.h: Likewise. * device/ds_routines.h: Likewise. * device/errno.h: Likewise. * device/if_ether.h: Likewise. * device/if_hdr.h: Likewise. * device/io_req.h: Likewise. * device/net_io.c: Likewise. * device/net_io.h: Likewise. * i386/i386/ast_check.c: Likewise. * i386/i386/cswitch.S: Likewise. * i386/i386/db_disasm.c: Likewise. * i386/i386/db_interface.c: Likewise. * i386/i386/db_trace.c: Likewise. * i386/i386/debug.h: Likewise. * i386/i386/debug_i386.c: Likewise. * i386/i386/debug_trace.S: Likewise. * i386/i386/eflags.h: Likewise. * i386/i386/gdt.h: Likewise. * i386/i386/hardclock.c: Likewise. * i386/i386/idt-gen.h: Likewise. * i386/i386/ipl.h: Likewise. * i386/i386/ktss.h: Likewise. * i386/i386/kttd_interface.c: Likewise. * i386/i386/ldt.h: Likewise. * i386/i386/lock.h: Likewise. * i386/i386/locore.S: Likewise. * i386/i386/mp_desc.h: Likewise. * i386/i386/pic.c: Likewise. * i386/i386/pic.h: Likewise. * i386/i386/pio.h: Likewise. * i386/i386/pit.h: Likewise. * i386/i386/seg.h: Likewise. * i386/i386/thread.h: Likewise. * i386/i386/trap.c: Likewise. * i386/i386/trap.h: Likewise. * i386/i386/vm_param.h: Likewise. * i386/i386/vm_tuning.h: Likewise. * i386/i386at/autoconf.c: Likewise. * i386/i386at/blit.c: Likewise. * i386/i386at/conf.c: Likewise. * i386/i386at/fd.c: Likewise. * i386/i386at/idt.h: Likewise. * i386/i386at/immc.c: Likewise. * i386/i386at/kd.c: Likewise. * i386/i386at/kd_event.c: Likewise. * i386/i386at/kd_mouse.c: Likewise. * i386/i386at/model_dep.c: Likewise. * i386/i386at/rtc.c: Likewise. * i386/include/mach/i386/asm.h: Likewise. * i386/include/mach/i386/eflags.h: Likewise. * i386/include/mach/i386/mach_i386.defs: Likewise. * i386/include/mach/i386/multiboot.h: Likewise. * i386/include/mach/i386/trap.h: Likewise. * i386/include/mach/i386/vm_types.h: Likewise. * i386/include/mach/sa/stdarg.h: Likewise. * i386/intel/pmap.c: Likewise. * i386/intel/pmap.h: Likewise. * include/alloca.h: Likewise. * include/device/device_types.defs: Likewise. * include/device/device_types.h: Likewise. * include/device/disk_status.h: Likewise. * include/device/net_status.h: Likewise. * include/mach/mach.defs: Likewise. * include/mach/memory_object.defs: Likewise. * include/mach/std_types.defs: Likewise. * include/mach_debug/hash_info.h: Likewise. * include/mach_debug/ipc_info.h: Likewise. * include/mach_debug/mach_debug.defs: Likewise. * include/mach_debug/mach_debug_types.defs: Likewise. * include/mach_debug/mach_debug_types.h: Likewise. * include/mach_debug/vm_info.h: Likewise. * include/mach_debug/zone_info.h: Likewise. * include/sys/ioctl.h: Likewise. * include/sys/time.h: Likewise. * ipc/ipc_entry.h: Likewise. * ipc/ipc_hash.h: Likewise. * ipc/ipc_init.c: Likewise. * ipc/ipc_kmsg.c: Likewise. * ipc/ipc_kmsg.h: Likewise. * ipc/ipc_marequest.c: Likewise. * ipc/ipc_marequest.h: Likewise. * ipc/ipc_mqueue.c: Likewise. * ipc/ipc_mqueue.h: Likewise. * ipc/ipc_notify.c: Likewise. * ipc/ipc_notify.h: Likewise. * ipc/ipc_object.c: Likewise. * ipc/ipc_object.h: Likewise. * ipc/ipc_port.c: Likewise. * ipc/ipc_port.h: Likewise. * ipc/ipc_pset.c: Likewise. * ipc/ipc_pset.h: Likewise. * ipc/ipc_right.c: Likewise. * ipc/ipc_right.h: Likewise. * ipc/ipc_space.c: Likewise. * ipc/ipc_space.h: Likewise. * ipc/mach_debug.c: Likewise. * ipc/mach_msg.c: Likewise. * ipc/mach_msg.h: Likewise. * ipc/mach_port.c: Likewise. * kern/act.c: Likewise. * kern/assert.h: Likewise. * kern/ast.c: Likewise. * kern/ast.h: Likewise. * kern/bootstrap.c: Likewise. * kern/counters.c: Likewise. * kern/counters.h: Likewise. * kern/debug.h: Likewise. * kern/exception.c: Likewise. * kern/host.h: Likewise. * kern/ipc_host.c: Likewise. * kern/ipc_host.h: Likewise. * kern/ipc_kobject.c: Likewise. * kern/ipc_mig.c: Likewise. * kern/ipc_tt.c: Likewise. * kern/ipc_tt.h: Likewise. * kern/kalloc.h: Likewise. * kern/lock_mon.c: Likewise. * kern/mach_clock.c: Likewise. * kern/mach_factor.c: Likewise. * kern/mach_param.h: Likewise. * kern/machine.c: Likewise. * kern/processor.c: Likewise. * kern/profile.c: Likewise. * kern/queue.h: Likewise. * kern/sched.h: Likewise. * kern/startup.c: Likewise. * kern/syscall_emulation.h: Likewise. * kern/syscall_subr.c: Likewise. * kern/syscall_subr.h: Likewise. * kern/syscall_sw.c: Likewise. * kern/syscall_sw.h: Likewise. * kern/task.h: Likewise. * kern/thread_swap.h: Likewise. * kern/time_out.h: Likewise. * kern/time_stamp.c: Likewise. * kern/time_stamp.h: Likewise. * kern/timer.c: Likewise. * kern/timer.h: Likewise. * kern/xpr.c: Likewise. * kern/xpr.h: Likewise. * kern/zalloc.c: Likewise. * kern/zalloc.h: Likewise. * linux/dev/drivers/block/ide.c: Likewise. * linux/dev/include/linux/blk.h: Likewise. * linux/src/include/linux/cdrom.h: Likewise. * linux/src/include/linux/md.h: Likewise. * util/cpu.h: Likewise. * vm/memory_object.c: Likewise. * vm/memory_object.h: Likewise. * vm/pmap.h: Likewise. * vm/vm_debug.c: Likewise. * vm/vm_external.h: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_fault.h: Likewise. * vm/vm_kern.h: Likewise. * vm/vm_map.c: Likewise. * vm/vm_map.h: Likewise. * vm/vm_object.h: Likewise. * vm/vm_pageout.c: Likewise. * vm/vm_pageout.h: Likewise. * vm/vm_user.h: Likewise.
*	Initial source	Thomas Bushnell	1997-02-25	1	-0/+46