Date: Sun, 03 Mar 2002 21:41:18 +0900 From: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Terry Lambert <tlambert2@mindspring.com>, Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>, arch@FreeBSD.ORG Subject: Re: reclaiming v_data of free vnodes Message-ID: <200203031242.g23CfIfu059069@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> In-Reply-To: <200202260923.g1Q9NkVh093544@rina.r.dl.itc.u-tokyo.ac.jp> References: <200202231556.g1NFu9N9040749@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> <200202242041.g1OKfXt95731@apollo.backplane.com> <200202250325.g1P3PVN9092431@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> <200202250444.g1P4i8X29005@apollo.backplane.com> <200202251437.g1PEb12R001419@bunko> <3C7A5D24.E11A6693@mindspring.com> <200202251754.g1PHsTs50126@apollo.backplane.com> <200202260923.g1Q9NkVh093544@rina.r.dl.itc.u-tokyo.ac.jp>
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--Multipart_Sun_Mar__3_21:41:18_2002-1
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Attached is the patch to use the zone allocator for in-core inodes.
On Tue, 26 Feb 2002 18:23:45 +0900,
Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> said:
Seigo> AFAIK, all of ffs, ifs and ext2fs utilize struct inode and
Seigo> dinode. They deal with the filesystem-specific data by a union. All of
Seigo> the filesystems should thus be able to share a single zone.
However, the usage of a few of the members (eg i_spare) depends on the
filesystem. So I actually gave a distinct zone for each of ffs, ifs
and ext2fs. This also gives the better modularity of the filesystem
than a single zone.
The patch includes the following optimization to the initialization of
a new in-core inode as well:
- Do not clear the members filled in *_vget().
- Since NODQUOT is defined as NULL, clear i_dquot only in
ufs_reclaim().
Finally, the result of vmstat -mz on cvsup.jp.FreeBSD.org follows the
patch. At that time, the host was up for a few hours, during which I
took du(1) over the whole cvsup tree.
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Memory statistics by bucket size
Size In Use Free Requests HighWater Couldfree
16 1147 1413 11388727 1280 9391
32 1795 5885 1049592 640 1668
64 377911 63561 14943019 320 176
128 59718 51130 1628292 160 17048
256 3945 38407 1457347 80 94181
512 4643 114285 1167114 40 47681
1K 93 2615 389590 20 195559
2K 19 263 11722 10 8816
4K 150 3 2074 5 0
8K 4 4 1695 5 0
16K 15 0 15 5 0
32K 3 0 9 5 0
64K 1 0 1 5 0
128K 2 0 2 5 0
256K 2 0 2 5 0
512K 6 0 6 5 0
Memory usage type by bucket size
Size Type(s)
16 nexusdev, UFS dirhash, newdirblk, p1003.1b, NFSV3 srvdesc,
ip6_moptions, in6_multi, igmp, routetbl, ether_multi, vnodes, mount,
pcb, soname, rman, mbufmgr, bus, sysctloid, sysctl, ip6ndp, temp,
devbuf, linker, atexit, proc-args, acpica, acpidev, DEVFS
32 atkbddev, UFS dirhash, dirrem, mkdir, diradd, freefile, freefrag,
indirdep, bmsafemap, newblk, tseg_qent, in_multi, routetbl,
ether_multi, ifaddr, vnodes, cluster_save buffer, pcb, soname, sbuf,
mbufmgr, eventhandler, bus, SWAP, sysctloid, sysctl, uidinfo, temp,
devbuf, lockf, linker, proc-args, sigio, acpica, pfs_vncache
64 UFS dirhash, allocindir, allocdirect, pagedep, NFS daemon, NFS req,
in6_multi, fragment, routetbl, ether_multi, BPF, vnodes,
cluster_save buffer, vfscache, pcb, iov, rman, mbufmgr, bus,
sysctloid, sysctl, subproc, module, acpisem, ip6ndp, temp, devbuf,
lockf, ithread, proc-args, file, acpica, isadev
128 ZONE, ppbusdev, UFS dirhash, freeblks, inodedep, NFS srvsock,
fragment, ip_moptions, routetbl, vnodes, mount, vfscache, soname,
ttys, iov, taskqueue, mbufmgr, eventhandler, bus, timecounter, cred,
session, pgrp, module, ip6ndp, temp, devbuf, ithread, zombie,
proc-args, acpica, pfs_nodes, DEVFS
256 UFS mount, UFS dirhash, newblk, NFS daemon, NFSV3 srvdesc, routetbl,
ifaddr, vnodes, Export Host, vfscache, iov, bus, subproc, temp,
devbuf, linker, proc-args, kqueue, file desc, dev_t, acpica
512 UFS dirhash, NFS daemon, NFSV3 diroff, routetbl, lo, ifaddr, mount,
vfscache, BIO buffer, ptys, ttys, msg, iov, ioctlops, bus, ip6ndp,
temp, devbuf, file desc, acpica
1K UFS dirhash, BIO buffer, sem, ioctlops, MD disk, bus, uidinfo, temp,
devbuf, kqueue, acpica
2K UFS mount, UFS dirhash, ifaddr, BIO buffer, pcb, bus, temp, devbuf
4K memdesc, UFS mount, UFS dirhash, sem, msg, sbuf, kobj, bus, proc,
temp, devbuf
8K UFS mount, UFS dirhash, indirdep, syncache, temp, DEVFS
16K shm, msg, devbuf
32K mbufmgr, temp, devbuf, pfs_fileno
64K temp
128K pagedep, mbufmgr
256K VM pgdata, UFS mount
512K UFS ihash, inodedep, NFS hash, vfscache, SWAP, ISOFS mount
Memory statistics by type Type Kern
Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)
atkbddev 2 1K 1K102400K 2 0 0 32
nexusdev 7 1K 1K102400K 7 0 0 16
memdesc 1 4K 4K102400K 1 0 0 4K
ZONE 18 3K 3K102400K 18 0 0 128
VM pgdata 1 256K 256K102400K 1 0 0 256K
ppbusdev 3 1K 1K102400K 3 0 0 128
UFS mount 18 176K 176K102400K 18 0 0 256,2K,4K,8K,256K
UFS ihash 1 512K 512K102400K 1 0 0 512K
UFS dirhash 4303 2138K 2356K102400K 53079 0 0 16,32,64,128,256,512,1K,2K,4K,8K
newdirblk 2 1K 1K102400K 270 0 0 16
dirrem 0 0K 188K102400K 11739 0 0 32
mkdir 1 1K 1K102400K 620 0 0 32
diradd 139 5K 11K102400K 13744 0 0 32
freefile 1 1K 188K102400K 8913 0 0 32
freeblks 46 6K 752K102400K 67593 0 0 128
freefrag 8 1K 7K102400K 206189 0 0 32
allocindir 20 2K 176K102400K 99164 0 0 64
indirdep 7 1K 33K102400K 3317 0 0 32,8K
allocdirect 243 16K 106K102400K 410504 0 0 64
bmsafemap 78 3K 10K102400K 46266 0 0 32
newblk 1 1K 1K102400K 509669 0 0 32,256
inodedep 249 543K 1265K102400K 82286 0 0 128,512K
pagedep 7 129K 133K102400K 3165 0 0 64,128K
p1003.1b 1 1K 1K102400K 1 0 0 16
NFS daemon 85 15K 15K102400K 85 0 0 64,256,512
NFSV3 srvdesc 1 1K 6K102400K 2598298 0 0 16,256
NFS srvsock 2 1K 1K102400K 2 0 0 128
NFS hash 1 512K 512K102400K 1 0 0 512K
NFSV3 diroff 8 4K 4K102400K 14 0 0 512
NFS req 0 0K 2K102400K 191730 0 0 64
ip6_moptions 2 1K 1K102400K 6 0 0 16
in6_multi 8 1K 1K102400K 16 0 0 16,64
fragment 0 0K 1K102400K 132 0 0 64,128
syncache 1 8K 8K102400K 1 0 0 8K
tseg_qent 0 0K 3K102400K 54453 0 0 32
ip_moptions 1 1K 1K102400K 3 0 0 128
in_multi 3 1K 1K102400K 4 0 0 32
igmp 1 1K 1K102400K 1 0 0 16
routetbl 295 41K 70K102400K 4851 0 0 16,32,64,128,256,512
lo 1 1K 1K102400K 1 0 0 512
ether_multi 38 2K 2K102400K 58 0 0 16,32,64
ifaddr 25 8K 8K102400K 25 0 0 32,256,512,2K
BPF 4 1K 1K102400K 4 0 0 64
vnodes 27 7K 7K102400K 347 0 0 16,32,64,128,256
Export Host 42 11K 11K102400K 42 0 0 256
mount 17 9K 9K102400K 61 0 0 16,128,512
cluster_save buffer 0 0K 1K102400K 69898 0 0 32,64
vfscache435662 32388K 80389K102400K 13063992 0 0 64,128,256,512,512K
BIO buffer 8 8K 2697K102400K 395143 0 0 512,1K,2K
pcb 153 7K 14K102400K 80532 0 0 16,32,64,2K
soname 22 2K 2K102400K 2000830 0 0 16,32,128
ptys 4 2K 2K102400K 4 0 0 512
ttys 566 75K 75K102400K 2477 0 0 128,512
shm 1 12K 12K102400K 1 0 0 16K
sem 3 6K 6K102400K 3 0 0 1K,4K
msg 4 25K 25K102400K 4 0 0 512,4K,16K
iov 0 0K 1K102400K 182 0 0 64,128,256,512
ioctlops 0 0K 1K102400K 22 0 0 512,1K
taskqueue 2 1K 1K102400K 2 0 0 128
sbuf 0 0K 5K102400K 2 0 0 32,4K
rman 63 4K 4K102400K 410 0 0 16,64
mbufmgr 495 112K 116K102400K 7952262 0 0 16,32,64,128,32K,128K
MD disk 1 1K 1K102400K 1 0 0 1K
kobj 123 492K 492K102400K 123 0 0 4K
eventhandler 29 2K 2K102400K 29 0 0 32,128
bus 697 50K 50K102400K 3770 0 0 16,32,64,128,256,512,1K,2K,4K
SWAP 2 1097K 1097K102400K 2 0 0 32,512K
timecounter 100 13K 13K102400K 100 0 0 128
sysctloid 46 2K 2K102400K 46 0 0 16,32,64
sysctl 0 0K 1K102400K 93864 0 0 16,32,64
uidinfo 9 2K 2K102400K 39 0 0 32,1K
cred 101 13K 14K102400K 17629 0 0 128
subproc 167 15K 18K102400K 21046 0 0 64,256
proc 2 8K 8K102400K 2 0 0 4K
session 46 6K 7K102400K 225 0 0 128
pgrp 51 7K 7K102400K 381 0 0 128
module 169 11K 11K102400K 169 0 0 64,128
acpisem 16 1K 1K102400K 16 0 0 64
ip6ndp 8 2K 2K102400K 12 0 0 16,64,128,512
temp 5 61K 98K102400K 289464 0 0 16,32,64,128,256,512,1K,2K,4K,8K,32K,64K
devbuf 510 413K 413K102400K 1393 0 0 16,32,64,128,256,512,1K,2K,4K,16K,32K
lockf 23 2K 2K102400K 20336 0 0 32,64
linker 34 2K 2K102400K 48 0 0 16,32,256
ithread 45 5K 5K102400K 45 0 0 64,128
atexit 2 1K 1K102400K 2 0 0 16
zombie 0 0K 2K102400K 20697 0 0 128
proc-args 98 6K 9K102400K 21587 0 0 16,32,64,128,256
kqueue 5 5K 6K102400K 35 0 0 256,1K
sigio 1 1K 1K102400K 2 0 0 32
file 376 24K 28K102400K 3582335 0 0 64
file desc 146 37K 47K102400K 21496 0 0 256,512
dev_t 1477 370K 370K102400K 1477 0 0 256
acpica 2169 112K 112K102400K 10086 0 0 16,32,64,128,256,512,1K
acpidev 100 2K 2K102400K 100 0 0 16
ISOFS mount 1 512K 512K102400K 1 0 0 512K
isadev 28 2K 2K102400K 28 0 0 64
pfs_vncache 0 0K 1K102400K 6 0 0 32
pfs_fileno 1 20K 20K102400K 1 0 0 32K
pfs_nodes 20 3K 3K102400K 20 0 0 128
DEVFS 149 25K 25K102400K 149 0 0 16,128,8K
Memory Totals: In Use Free Requests
40350K 80500K 32039231
ITEM SIZE LIMIT USED FREE REQUESTS
SWAPMETA: 160, 509724, 70, 749, 784
ripcb: 192, 8232, 3, 39, 13
syncache: 160, 15359, 0, 51, 96702
tcpcb: 544, 8232, 383, 1273, 175720
udpcb: 192, 8232, 72, 34, 1905
unpcb: 160, 0, 44, 31, 495
socket: 224, 8232, 503, 1289, 178141
KNOTE: 64, 0, 0, 128, 22
DIRHASH: 1024, 0, 491, 1493, 133876
PIPE: 192, 0, 39, 131, 6172
NFSNODE: 320, 0, 1258, 1490, 13343
NFSMOUNT: 256, 0, 7, 25, 49
FFSNODE: 256, 0, 412703, 1457, 12363841
NAMEI: 1024, 0, 0, 32, 35173731
VNODEPOLL: 64, 0, 0, 320, 1
VNODE: 224, 0, 414318, 96, 414318
VMSPACE: 224, 0, 107, 55, 20788
PROC: 768, 0, 144, 64, 20841
DP fakepg: 64, 0, 0, 0, 0
PV ENTRY: 28, 2396042, 163256, 623165, 11586363
MAP ENTRY: 48, 0, 3108, 760, 6306679
KMAP ENTRY: 48, 193110, 477, 163, 55810
MAP: 108, 0, 8, 39, 8
VM OBJECT: 96, 0, 186835, 223803, 1774809
--Multipart_Sun_Mar__3_21:41:18_2002-1
Content-Type: text/plain; charset=US-ASCII
--
Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> <tanimura@FreeBSD.org>
--Multipart_Sun_Mar__3_21:41:18_2002-1--
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