Make pstat use new kvm_getswapinfo() libkvm call.
This commit is contained in:
Matthew Dillon
parent
e92324a21e
commit
782f8687be
@ -42,7 +42,7 @@ static const char copyright[] =
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static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95";
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#endif
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static const char rcsid[] =
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"$Id: pstat.c,v 1.37 1998/08/19 01:32:28 bde Exp $";
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"$Id: pstat.c,v 1.38 1999/01/21 08:08:55 dillon Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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@ -84,22 +84,14 @@ static const char rcsid[] =
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#include <unistd.h>
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struct nlist nl[] = {
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#define VM_SWAPLIST 0
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{ "_swaplist" },/* list of free swap areas */
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#define NLMANDATORYBEG 1
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#define VM_SWDEVT 1
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{ "_swdevt" }, /* list of swap devices and sizes */
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#define VM_NSWDEV 2
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{ "_nswdev" }, /* number of swap devices */
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#define VM_DMMAX 3
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{ "_dmmax" }, /* maximum size of a swap block */
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#define V_MOUNTLIST 4
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#define NLMANDATORYBEG 0
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#define V_MOUNTLIST 0
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{ "_mountlist" }, /* address of head of mount list. */
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#define V_NUMV 5
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#define V_NUMV 1
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{ "_numvnodes" },
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#define FNL_NFILE 6
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#define FNL_NFILE 2
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{"_nfiles"},
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#define FNL_MAXFILE 7
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#define FNL_MAXFILE 3
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{"_maxfiles"},
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#define NLMANDATORYEND FNL_MAXFILE /* names up to here are mandatory */
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#define SCONS NLMANDATORYEND + 1
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@ -108,55 +100,53 @@ struct nlist nl[] = {
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{ "_pt_tty" },
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#define SNPTY NLMANDATORYEND + 3
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{ "_npty" },
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#define VM_SWAPBLIST NLMANDATORYEND + 4
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{ "_swapblist" },
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#ifdef hp300
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#define SDCA (VM_SWAPBLIST+1)
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#define SDCA (SNPTY+1)
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{ "_dca_tty" },
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#define SNDCA (VM_SWAPBLIST+2)
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#define SNDCA (SNPTY+2)
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{ "_ndca" },
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#define SDCM (VM_SWAPBLIST+3)
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#define SDCM (SNPTY+3)
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{ "_dcm_tty" },
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#define SNDCM (VM_SWAPBLIST+4)
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#define SNDCM (SNPTY+4)
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{ "_ndcm" },
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#define SDCL (VM_SWAPBLIST+5)
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#define SDCL (SNPTY+5)
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{ "_dcl_tty" },
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#define SNDCL (VM_SWAPBLIST+6)
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#define SNDCL (SNPTY+6)
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{ "_ndcl" },
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#define SITE (VM_SWAPBLIST+7)
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#define SITE (SNPTY+7)
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{ "_ite_tty" },
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#define SNITE (VM_SWAPBLIST+8)
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#define SNITE (SNPTY+8)
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{ "_nite" },
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#endif
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#ifdef mips
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#define SDC (VM_SWAPBLIST+1)
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#define SDC (SNPTY+1)
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{ "_dc_tty" },
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#define SNDC (VM_SWAPBLIST+2)
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#define SNDC (SNPTY+2)
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{ "_dc_cnt" },
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#endif
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#ifdef __FreeBSD__
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#define SCCONS (VM_SWAPBLIST+1)
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#define SCCONS (SNPTY+1)
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{ "_sccons" },
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#define NSCCONS (VM_SWAPBLIST+2)
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#define NSCCONS (SNPTY+2)
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{ "_nsccons" },
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#define SIO (VM_SWAPBLIST+3)
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#define SIO (SNPTY+3)
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{ "_sio_tty" },
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#define NSIO (VM_SWAPBLIST+4)
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#define NSIO (SNPTY+4)
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{ "_nsio_tty" },
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#define RC (VM_SWAPBLIST+5)
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#define RC (SNPTY+5)
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{ "_rc_tty" },
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#define NRC (VM_SWAPBLIST+6)
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#define NRC (SNPTY+6)
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{ "_nrc_tty" },
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#define CY (VM_SWAPBLIST+7)
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#define CY (SNPTY+7)
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{ "_cy_tty" },
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#define NCY (VM_SWAPBLIST+8)
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#define NCY (SNPTY+8)
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{ "_ncy_tty" },
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#define SI (VM_SWAPBLIST+9)
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#define SI (SNPTY+9)
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{ "_si_tty" },
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#define NSI (VM_SWAPBLIST+10)
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#define NSI (SNPTY+10)
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{ "_si_Nports" },
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#endif
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{ "" }
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@ -1034,168 +1024,6 @@ getfiles(abuf, alen)
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return (0);
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}
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/*
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* scanradix() - used by swapmode() to scan the swap device's new style
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* radix tree
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*/
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#define TABME tab, tab, ""
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int
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scanradix(
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blmeta_t *scan,
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daddr_t blk,
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daddr_t radix,
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daddr_t skip,
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daddr_t count,
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int dmmax,
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int nswdev,
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long *perdev,
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int tab
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) {
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blmeta_t meta;
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KGET2(scan, &meta, sizeof(meta), "blmeta_t");
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/*
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* Terminator
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*/
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if (meta.bm_bighint == (daddr_t)-1) {
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if (swapflag > 1) {
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printf("%*.*s(0x%06x,%d) Terminator\n",
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TABME,
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blk,
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radix
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);
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}
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return(-1);
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}
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if (radix == BLIST_BMAP_RADIX) {
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/*
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* Leaf bitmap
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*/
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int i;
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if (swapflag > 1) {
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printf("%*.*s(0x%06x,%d) Bitmap %08x big=%d\n",
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TABME,
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blk,
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radix,
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(int)meta.u.bmu_bitmap,
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meta.bm_bighint
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);
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}
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/*
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* If not all allocated, count.
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*/
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if (meta.u.bmu_bitmap != 0) {
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for (i = 0; i < BLIST_BMAP_RADIX && i < count; ++i) {
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/*
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* A 0 bit means allocated
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*/
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if ((meta.u.bmu_bitmap & (1 << i))) {
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int t = 0;
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if (nswdev)
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t = (blk + i) / dmmax % nswdev;
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++perdev[t];
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}
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}
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}
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} else if (meta.u.bmu_avail == radix) {
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/*
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* Meta node if all free
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*/
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if (swapflag > 1) {
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printf("%*.*s(0x%06x,%d) Submap ALL-FREE {\n",
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TABME,
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blk,
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radix,
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(int)meta.u.bmu_avail,
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meta.bm_bighint
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);
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}
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/*
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* Note: both dmmax and radix are powers of 2. However, dmmax
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* may be larger then radix so use a smaller increment if
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* necessary.
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*/
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{
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int t;
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int tinc = dmmax;
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while (tinc > radix)
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tinc >>= 1;
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for (t = blk; t < blk + radix; t += tinc) {
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if (nswdev)
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perdev[0] += tinc;
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else
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perdev[t / dmmax % nswdev] += tinc;
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}
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}
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} else if (meta.u.bmu_avail == 0) {
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/*
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* Meta node if all used
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*/
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if (swapflag > 1) {
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printf("%*.*s(0x%06x,%d) Submap ALL-ALLOCATED\n",
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TABME,
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blk,
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radix,
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(int)meta.u.bmu_avail,
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meta.bm_bighint
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);
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}
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} else {
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/*
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* Meta node if not all free
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*/
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int i;
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int next_skip;
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radix >>= BLIST_META_RADIX_SHIFT;
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next_skip = skip >> BLIST_META_RADIX_SHIFT;
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if (swapflag > 1) {
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printf("%*.*s(0x%06x,%d) Submap avail=%d big=%d {\n",
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TABME,
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blk,
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radix,
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(int)meta.u.bmu_avail,
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meta.bm_bighint
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);
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}
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for (i = 1; i <= skip; i += next_skip) {
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int r;
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daddr_t vcount = (count > radix) ? radix : count;
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r = scanradix(
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&scan[i],
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blk,
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radix,
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next_skip - 1,
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vcount,
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dmmax,
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nswdev,
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perdev,
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tab + 4
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);
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if (r < 0)
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break;
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blk += radix;
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}
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if (swapflag > 1) {
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printf("%*.*s}\n", TABME);
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}
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}
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return(0);
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}
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/*
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* swapmode is based on a program called swapinfo written
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* by Kevin Lahey <kml@rokkaku.atl.ga.us>.
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@ -1203,161 +1031,66 @@ scanradix(
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void
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swapmode(void)
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{
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char *header, *p;
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int hlen, nswdev, dmmax;
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int i, div, mul, avail, nfree, npfree, used;
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struct swdevt *sw;
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long blocksize, *perdev;
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struct rlist head;
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struct rlisthdr swaplist;
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struct blist *swapblist = NULL;
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u_long ptr;
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struct kvm_swap kswap[16];
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int i;
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int n;
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int pagesize = getpagesize();
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const char *header;
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int hlen;
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long blocksize;
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KGET(VM_NSWDEV, nswdev);
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KGET(VM_DMMAX, dmmax); /* PAGE_BSIZE'd or PAGE_SIZE'd depending */
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if (!KGET1N(VM_SWAPLIST, &swaplist, sizeof swaplist, "swaplist")) {
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KGET1(VM_SWAPBLIST, &swapblist, sizeof swapblist, "swapblist");
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}
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n = kvm_getswapinfo(
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kd,
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kswap,
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sizeof(kswap)/sizeof(kswap[0]),
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(swapflag > 1) ? SWIF_DUMP_TREE : 0
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);
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if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
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(perdev = malloc(nswdev * sizeof(*perdev))) == NULL)
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errx(1, "malloc");
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KGET1(VM_SWDEVT, &ptr, sizeof ptr, "swdevt");
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KGET2(ptr, sw, nswdev * sizeof(*sw), "*swdevt");
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/* Count up swap space. */
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nfree = 0;
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memset(perdev, 0, nswdev * sizeof(*perdev));
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if (swapblist) {
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/*
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* New swap radix tree (ugh!)
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*/
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struct blist blcopy = { 0 };
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KGET2(swapblist, &blcopy, sizeof(blcopy), "*swapblist");
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if (swapflag > 1) {
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printf("radix tree: %d/%d/%d blocks, %dK wired\n",
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blcopy.bl_free,
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blcopy.bl_blocks,
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blcopy.bl_radix,
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(blcopy.bl_rootblks * sizeof(blmeta_t) + 1023)/
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1024
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);
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}
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scanradix(blcopy.bl_root, 0, blcopy.bl_radix, blcopy.bl_skip, blcopy.bl_rootblks, dmmax, nswdev, perdev, 0);
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} else {
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/*
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* Old swap
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*/
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struct rlist *swapptr;
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swapptr = swaplist.rlh_list;
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while (swapptr) {
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int top, bottom, next_block;
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KGET2(swapptr, &head, sizeof(struct rlist), "swapptr");
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top = head.rl_end;
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bottom = head.rl_start;
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nfree += top - bottom + 1;
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/*
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* Swap space is split up among the configured disks.
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*
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* For interleaved swap devices, the first dmmax blocks
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* of swap space some from the first disk, the next
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* dmmax blocks from the next, and so.
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*
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* The list of free space joins adjacent free blocks,
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* ignoring device boundries. If we want to keep track
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* of this information per device, we'll just have to
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* extract it ourselves.
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*/
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while (top / dmmax != bottom / dmmax) {
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next_block = ((bottom + dmmax) / dmmax);
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perdev[(bottom / dmmax) % nswdev] +=
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next_block * dmmax - bottom;
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bottom = next_block * dmmax;
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}
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perdev[(bottom / dmmax) % nswdev] +=
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top - bottom + 1;
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swapptr = head.rl_next;
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}
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}
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#define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize))
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header = getbsize(&hlen, &blocksize);
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if (!totalflag)
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if (totalflag == 0) {
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(void)printf("%-11s %*s %8s %8s %8s %s\n",
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"Device", hlen, header,
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"Used", "Avail", "Capacity", "Type");
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mul = 1;
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if (swapblist) {
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if ((div = blocksize / PAGE_SIZE) == 0) {
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mul = PAGE_SIZE / blocksize;
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div = 1;
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}
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} else {
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if ((div = blocksize / DEV_BSIZE) == 0) {
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mul = DEV_BSIZE / blocksize;
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div = 1;
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for (i = 0; i < n; ++i) {
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(void)printf(
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"/dev/%-6s %*d ",
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kswap[i].ksw_devname,
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hlen,
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CONVERT(kswap[i].ksw_total)
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);
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(void)printf(
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"%8d %8d %5.0f%% %s\n",
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CONVERT(kswap[i].ksw_used),
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CONVERT(kswap[i].ksw_total - kswap[i].ksw_used),
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(double)kswap[i].ksw_used * 100.0 /
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(double)kswap[i].ksw_total,
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(kswap[i].ksw_flags & SW_SEQUENTIAL) ?
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"Sequential" : "Interleaved"
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);
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}
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}
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avail = npfree = 0;
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for (i = 0; i < nswdev; i++) {
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int xsize, xfree;
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/*
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* Don't report statistics for partitions which have not
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* yet been activated via swapon(8).
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*/
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if (!(sw[i].sw_flags & SW_FREED))
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continue;
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if (!totalflag)
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if (sw[i].sw_dev != NODEV) {
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p = devname(sw[i].sw_dev, S_IFBLK);
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(void)printf("/dev/%-6s %*d ",
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p == NULL ? "??" : p,
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hlen, sw[i].sw_nblks * mul / div);
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} else
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(void)printf("[NFS swap] %*d ",
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hlen, sw[i].sw_nblks * mul / div);
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/* The first dmmax is never allocated to avoid trashing of
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* disklabels
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*/
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xsize = sw[i].sw_nblks - dmmax;
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xfree = perdev[i];
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used = xsize - xfree;
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npfree++;
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avail += xsize;
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if (totalflag)
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continue;
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(void)printf("%8d %8d %5.0f%% %s\n",
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used * mul / div, xfree * mul / div,
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(double)used / (double)xsize * 100.0,
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(sw[i].sw_flags & SW_SEQUENTIAL) ?
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"Sequential" : "Interleaved");
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}
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/*
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* If only one partition has been set up via swapon(8), we don't
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* need to bother with totals.
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*/
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used = avail - nfree;
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free(sw);
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free(perdev);
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if (totalflag) {
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(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
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return;
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}
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if (npfree > 1) {
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(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
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"Total", hlen, avail * mul / div, used * mul / div, nfree * mul / div,
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(double)used / (double)avail * 100.0);
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blocksize = 1024 * 1024;
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(void)printf(
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"%dM/%dM swap space\n",
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CONVERT(kswap[n].ksw_used),
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CONVERT(kswap[n].ksw_total)
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);
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} else if (n > 1) {
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(void)printf(
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"%-11s %*d %8d %8d %5.0f%%\n",
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"Total",
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hlen,
|
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CONVERT(kswap[n].ksw_total),
|
||||
CONVERT(kswap[n].ksw_used),
|
||||
CONVERT(kswap[n].ksw_total - kswap[n].ksw_used),
|
||||
(double)kswap[n].ksw_used * 100.0 /
|
||||
(double)kswap[n].ksw_total
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user