With a system built yesterday on my amd64, I had plenty of memory showing as free when the system completely started up. Even after intense usage I showed lots of free memory in top. Over night at some point all my memory is no longer free but inactive. Is there anything wrong here or is this expected behavior? ps doesn't show any serious usage by any particular process. Also, if disk caches or something were taking up the memory, I would expect it to have shown a lot earlier. Top shows the following: last pid: 95687; load averages: 0.04, 0.11, 0.13 up 1+02:47:04 11:58:33 182 processes: 2 running, 180 sleeping CPU states: 6.6% user, 0.0% nice, 2.7% system, 3.9% interrupt, 86.7% idle Mem: 512M Active, 1097M Inact, 121M Wired, 74M Cache, 214M Buf, 15M Free Swap: 3072M Total, 3072M Free vmstat shows: procs memory page disks faults cpu r b w avm fre flt re pi po fr sr ad0 ad1 in sy cs us sy id 0 4 0 1069628 93252 296 0 0 0 276 7 0 0 15232 2188 4636 3 9 88 and vmstat -m shows: Type InUse MemUse HighUse Requests Size(s) fmtfeed 0 0K 8K 1630 feeder 55 3K 3K 13890 32,128 ac97 2 1K 1K 2 16,256 mixer 1 1K 1K 1 1024 ratefeed 1 20K 20K 1494 mirror data 3 1K 2K 18645 64,256,512 agp 2 129K 129K 2 32 linux 10 1K 1K 10 64 NTFS nthash 1 512K 512K 1 MSDOSFS mount 1 256K 256K 1 atkbddev 2 1K 1K 2 32 DEVFS 369 101K 101K 370 16,64,128,256 nexusdev 2 1K 1K 2 16 USB 107 19K 19K 129 16,32,64,128,256,512 I/O APIC 1 2K 2K 1 2048 USBdev 9 2K 12K 33 16,64,128,512,1024 USBHC 2 1K 1K 3 16,128 memdesc 1 4K 8K 26 32,4096 entropy 1024 64K 64K 1024 64 VM pgdata 2 129K 129K 2 128 ppbusdev 2 1K 1K 2 256 ATA DMA 4 1K 1K 4 256 AD driver 4 1K 1K 4 256 UMAHash 2 12K 14K 9 512,1024,2048,4096 UFS mount 9 60K 60K 9 512,2048 UFS ihash 1 512K 512K 1 UFS dirhash 2656 1105K 1330K 15744 16,32,64,128,256,512,1024,2048 pagedep 2 129K 181K 13658 128 inodedep 1 512K 2376K 105788 256 newblk 1 1K 1K 446846 64,512 bmsafemap 0 0K 2K 6275 64 allocdirect 0 0K 586K 304042 128 indirdep 0 0K 338K 3275 64 allocindir 0 0K 654K 142803 128 freefrag 0 0K 56K 157074 64 freeblks 0 0K 512K 57013 256 freefile 0 0K 128K 54511 64 diradd 0 0K 224K 87929 64 mkdir 0 0K 9K 9840 64 dirrem 0 0K 225K 87223 64 newdirblk 0 0K 1K 87 32 savedino 0 0K 520K 34555 256 p1003.1b 1 1K 1K 1 16 NFS srvsock 2 1K 1K 2 256 NFSV3 srvdesc 0 0K 2K 35458 32,512 NFS daemon 69 7K 7K 69 64,512 NFS req 0 0K 1K 36 128 NFS hash 1 512K 512K 1 ip6_moptions 1 1K 1K 1 32 in6_multi 21 2K 2K 21 32,64 syncache 1 12K 12K 1 hostcache 1 48K 48K 1 ip_moptions 2 1K 1K 2 256 IpFw/IpAcct 25 5K 5K 25 64,128,2048 in_multi 5 1K 1K 5 64 igmp 2 1K 1K 2 32 routetbl 196 73K 73K 194086 32,64,128,256,512 lo 1 2K 2K 1 2048 clone 3 12K 12K 3 4096 ifaddr 46 19K 19K 46 32,64,256,512,4096 ether_multi 92 5K 5K 92 16,32,64 BPF 8 10K 10K 8 128,512,4096 ATA generic 12 4K 4K 12 16,512 mount 124 17K 18K 428 16,32,64,128,256,1024,2048 vnodes 4 1K 1K 15887 32,256 Export Host 3 2K 2K 3 512 cluster_save buffer 0 0K 1K 38456 64,128 vfscache 1 1024K 1024K 1 BIO buffer 5435 10870K 10940K 236537 2048 acpidev 54 4K 4K 54 64 soname 240 28K 30K 560515 16,32,64,128 pcb 158 13K 14K 19609 16,32,64,128,4096 mbuf tags 0 0K 1K 387337 32,128 mbextcnt 0 0K 1K 854 16 ptys 10 3K 3K 10 256 ttys 2303 315K 329K 15467 128,1024 shm 24 62K 72K 1633 2048 sem 4 60K 60K 4 4096 msg 4 30K 30K 4 2048,4096 ioctlops 0 0K 4K 13704684 16,32,64,128,256,512,1024,4096 iov 0 0K 1K 3037291 16,64,128,256,512,1024 Unitno 8 1K 1K 9 32 turnstiles 313 40K 40K 313 128 taskqueue 6 1K 1K 6 128 acpitask 0 0K 1K 2 16,64 sleep queues 313 20K 20K 313 64 sbuf 0 0K 37K 2469 16,32,64,128,256,512,1024,2048,4096 acpipwr 1 1K 1K 1 64 rman 159 20K 20K 573 16,128 acpica 1871 194K 195K 17558 16,32,64,128,256,512,1024 kobj 146 584K 596K 11596 4096 eventhandler 38 5K 5K 38 64,256 devstat 18 37K 37K 18 32,4096 bus 714 59K 166K 3582 16,32,64,128,256,1024 bus-sc 69 107K 203K 1351 16,32,64,128,256,512,1024,2048,4096 sbp 96 14K 14K 96 32,256 SWAP 2 413K 413K 2 64 sysctl 0 0K 1K 257517 16,32,64 sysctloid 2603 126K 126K 2653 16,32,64,128 sysctltmp 0 0K 1K 24292 16,32,64,128 plimit 35 9K 10K 12769 256 uidinfo 14 3K 3K 428 64,2048 cred 172 43K 45K 3054902 256 if_fwe 128 40K 40K 128 256 pgrp 72 9K 10K 1291 128 session 65 17K 18K 872 256 proc 2 16K 16K 2 subproc 435 914K 1026K 195715 512,4096 mtx_pool 1 12K 12K 1 PCI Link 16 2K 2K 16 64,128 module 231 29K 29K 231 128 acpisem 19 3K 3K 19 128 devbuf 5323 8315K 8571K 5992 16,32,64,128,256,512,1024,2048,4096 temp 85 48K 48K 1183962 16,32,64,128,256,512,1024,2048,4096 ip6opt 2 1K 1K 2 256 ip6ndp 8 2K 2K 11 64,128,256 lockf 41 6K 6K 47860 128 linker 93 13K 13K 111 16,32,64,128,256,512 firewire 29 44K 44K 31 16,64,128,512,1024,2048,4096 KTRACE 100 13K 13K 100 128 fw_xfer 0 0K 1K 1 256 ithread 60 12K 12K 60 128,256 zombie 0 0K 3K 195280 256 proc-args 114 9K 10K 160802 16,32,64,128,256 kqueue 0 0K 12K 20824 256,2048 kenv 55 6K 6K 56 16,32,64,4096 file desc 307 333K 341K 204062 16,32,64,128,256,512,1024,2048,4096 sigio 2 1K 1K 10 64 cdev 148 74K 74K 157 512 ACD driver 2 4K 4K 2 2048 ATA CAM transport 4 1K 5K 88 64,256,1024 AR driver 1 1K 3K 9 128,256,2048 ISOFS mount 1 512K 512K 1 isadev 7 1K 1K 7 64 GEOM 163 30K 56K 1004 16,32,64,128,256,512,1024,2048,4096 pfs_vncache 0 0K 1K 324 64 pfs_fileno 2 40K 40K 2 pfs_nodes 49 7K 7K 49 128 and finally vmstat -z shows: ITEM SIZE LIMIT USED FREE REQUESTS SWAPMETA: 288, 116519, 0, 0, 0 FFS2 dinode: 256, 0, 90328, 47, 5119957 FFS1 dinode: 128, 0, 0, 0, 0 FFS inode: 208, 0, 90328, 50, 5119957 IPFW dynamic: 80, 0, 194, 391, 12353 divcb: 304, 12336, 1, 23, 1 rtentry: 264, 0, 31, 25, 81 unpcb: 192, 25600, 426, 74, 45295 ripcb: 304, 12336, 3, 21, 10 sackhole: 24, 0, 0, 252, 26 tcpreass: 40, 1680, 0, 168, 5400 hostcache: 136, 15372, 38, 46, 466 syncache: 128, 15370, 0, 58, 5751 tcptw: 80, 2475, 3, 132, 4415 tcpcb: 736, 12330, 193, 32, 11508 inpcb: 304, 12336, 196, 68, 11508 udpcb: 304, 12336, 58, 38, 15631 socket: 568, 12334, 752, 95, 72452 KNOTE: 120, 0, 0, 62, 21596 PIPE: 720, 0, 194, 36, 99726 DIRHASH: 1024, 0, 1062, 346, 18503 NFSNODE: 680, 0, 2, 10, 2 NFSMOUNT: 576, 0, 2, 12, 2 L VFS Cache: 327, 0, 565, 803, 104791 S VFS Cache: 104, 0, 95620, 536, 5858234 NAMEI: 1024, 0, 0, 20, 44514947 VNODEPOLL: 128, 0, 1, 57, 1 VNODE: 512, 0, 90398, 14, 90398 ata_request: 344, 0, 0, 44, 1205278 g_bio: 216, 0, 0, 1944, 4741157 MbufClust: 2048, 25600, 1536, 6, 13308 Mbuf: 256, 0, 1538, 127, 6041041 Packet: 256, 0, 1472, 193, 3353442 VMSPACE: 544, 0, 127, 48, 195884 UPCALL: 88, 0, 34, 42, 255 KSEGRP: 136, 0, 252, 34, 364 TID: 144, 0, 1, 51, 1 THREAD: 608, 0, 299, 13, 6232098 PROC: 800, 0, 189, 46, 195498 Files: 120, 0, 1430, 213, 4033993 4096: 4096, 0, 638, 39, 215187 2048: 2048, 0, 5488, 134, 249953 1024: 1024, 0, 135, 85, 1002937 512: 512, 0, 2980, 450, 251983 256: 256, 0, 1111, 1829, 3682133 128: 128, 0, 8229, 2472, 850191 64: 64, 0, 3842, 3830, 3898580 32: 32, 0, 1690, 330, 886456 16: 16, 0, 1935, 585, 14240406 DP fakepg: 120, 0, 14590, 11, 14590 PV ENTRY: 48, 1757088, 285743, 73753, 235121221 MAP ENTRY: 112, 0, 17802, 1932, 9757492 KMAP ENTRY: 112, 88011, 15, 117, 11943 MAP: 352, 0, 7, 15, 5 VM OBJECT: 224, 0, 88858, 8739, 4165303 128 Bucket: 1048, 0, 525, 0, 0 64 Bucket: 536, 0, 28, 35, 0 32 Bucket: 280, 0, 28, 28, 0 16 Bucket: 152, 0, 29, 21, 0 UMA Hash: 256, 0, 3, 12, 0 UMA RCntSlab: 128, 0, 771, 12, 0 UMA Slabs: 128, 0, 3976, 26, 0 UMA Zones: 152, 0, 62, 10, 0 UMA Kegs: 232, 0, 62, 13, 0Received on Wed Feb 16 2005 - 19:12:12 UTC
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