/* $NetBSD: uvm_stat.c,v 1.46 2020/06/14 21:41:42 ad Exp $ */ /* * Copyright (c) 1997 Charles D. Cranor and Washington University. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * from: Id: uvm_stat.c,v 1.1.2.3 1997/12/19 15:01:00 mrg Exp */ /* * uvm_stat.c */ #include __KERNEL_RCSID(0, "$NetBSD: uvm_stat.c,v 1.46 2020/06/14 21:41:42 ad Exp $"); #include "opt_readahead.h" #include "opt_ddb.h" #include #include #include #include #include #ifdef DDB #include /* * uvmexp_print: ddb hook to print interesting uvm counters */ void uvmexp_print(void (*pr)(const char *, ...) __attribute__((__format__(__printf__,1,2)))) { int64_t anonpg, execpg, filepg; int active, inactive; int poolpages, freepg; uvm_estimatepageable(&active, &inactive); poolpages = pool_totalpages_locked(); /* this will sync all counters. */ freepg = uvm_availmem(false); anonpg = cpu_count_get(CPU_COUNT_ANONCLEAN) + cpu_count_get(CPU_COUNT_ANONDIRTY) + cpu_count_get(CPU_COUNT_ANONUNKNOWN); execpg = cpu_count_get(CPU_COUNT_EXECPAGES); filepg = cpu_count_get(CPU_COUNT_FILECLEAN) + cpu_count_get(CPU_COUNT_FILEDIRTY) + cpu_count_get(CPU_COUNT_FILEUNKNOWN) - execpg; (*pr)("Current UVM status:\n"); (*pr)(" pagesize=%d (0x%x), pagemask=0x%x, pageshift=%d, ncolors=%d\n", uvmexp.pagesize, uvmexp.pagesize, uvmexp.pagemask, uvmexp.pageshift, uvmexp.ncolors); (*pr)(" %d VM pages: %d active, %d inactive, %d wired, %d free\n", uvmexp.npages, active, inactive, uvmexp.wired, freepg); (*pr)(" pages %" PRId64 " anon, %" PRId64 " file, %" PRId64 " exec\n", anonpg, filepg, execpg); (*pr)(" freemin=%d, free-target=%d, wired-max=%d\n", uvmexp.freemin, uvmexp.freetarg, uvmexp.wiredmax); (*pr)(" resv-pg=%d, resv-kernel=%d\n", uvmexp.reserve_pagedaemon, uvmexp.reserve_kernel); (*pr)(" bootpages=%d, poolpages=%d\n", uvmexp.bootpages, poolpages); (*pr)(" faults=%" PRId64 ", traps=%" PRId64 ", " "intrs=%" PRId64 ", ctxswitch=%" PRId64 "\n", cpu_count_get(CPU_COUNT_NFAULT), cpu_count_get(CPU_COUNT_NTRAP), cpu_count_get(CPU_COUNT_NINTR), cpu_count_get(CPU_COUNT_NSWTCH)); (*pr)(" softint=%" PRId64 ", syscalls=%" PRId64 "\n", cpu_count_get(CPU_COUNT_NSOFT), cpu_count_get(CPU_COUNT_NSYSCALL)); (*pr)(" fault counts:\n"); (*pr)(" noram=%" PRId64 ", noanon=%" PRId64 ", pgwait=%" PRId64 ", pgrele=%" PRId64 "\n", cpu_count_get(CPU_COUNT_FLTNORAM), cpu_count_get(CPU_COUNT_FLTNOANON), cpu_count_get(CPU_COUNT_FLTPGWAIT), cpu_count_get(CPU_COUNT_FLTPGRELE)); (*pr)(" ok relocks(total)=%" PRId64 "(%" PRId64 "), " "anget(retrys)=%" PRId64 "(%" PRId64 "), amapcopy=%" PRId64 "\n", cpu_count_get(CPU_COUNT_FLTRELCKOK), cpu_count_get(CPU_COUNT_FLTRELCK), cpu_count_get(CPU_COUNT_FLTANGET), cpu_count_get(CPU_COUNT_FLTANRETRY), cpu_count_get(CPU_COUNT_FLTAMCOPY)); (*pr)(" neighbor anon/obj pg=%" PRId64 "/%" PRId64 ", gets(lock/unlock)=%" PRId64 "/%" PRId64 "\n", cpu_count_get(CPU_COUNT_FLTNAMAP), cpu_count_get(CPU_COUNT_FLTNOMAP), cpu_count_get(CPU_COUNT_FLTLGET), cpu_count_get(CPU_COUNT_FLTGET)); (*pr)(" cases: anon=%" PRId64 ", anoncow=%" PRId64 ", obj=%" PRId64 ", prcopy=%" PRId64 ", przero=%" PRId64 "\n", cpu_count_get(CPU_COUNT_FLT_ANON), cpu_count_get(CPU_COUNT_FLT_ACOW), cpu_count_get(CPU_COUNT_FLT_OBJ), cpu_count_get(CPU_COUNT_FLT_PRCOPY), cpu_count_get(CPU_COUNT_FLT_PRZERO)); (*pr)(" daemon and swap counts:\n"); (*pr)(" woke=%d, revs=%d, scans=%d, obscans=%d, anscans=%d\n", uvmexp.pdwoke, uvmexp.pdrevs, uvmexp.pdscans, uvmexp.pdobscan, uvmexp.pdanscan); (*pr)(" busy=%d, freed=%d, reactivate=%d, deactivate=%d\n", uvmexp.pdbusy, uvmexp.pdfreed, uvmexp.pdreact, uvmexp.pddeact); (*pr)(" pageouts=%d, pending=%d, nswget=%d\n", uvmexp.pdpageouts, uvmexp.pdpending, uvmexp.nswget); (*pr)(" nswapdev=%d, swpgavail=%d\n", uvmexp.nswapdev, uvmexp.swpgavail); (*pr)(" swpages=%d, swpginuse=%d, swpgonly=%d, paging=%d\n", uvmexp.swpages, uvmexp.swpginuse, uvmexp.swpgonly, uvmexp.paging); } #endif #if defined(READAHEAD_STATS) #define UVM_RA_EVCNT_DEFINE(name) \ struct evcnt uvm_ra_##name = \ EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "readahead", #name); \ EVCNT_ATTACH_STATIC(uvm_ra_##name); UVM_RA_EVCNT_DEFINE(total); UVM_RA_EVCNT_DEFINE(hit); UVM_RA_EVCNT_DEFINE(miss); #endif /* defined(READAHEAD_STATS) */