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deviate.c
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deviate.c
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/*
** ATOP - System & Process Monitor
**
** The program 'atop' offers the possibility to view the activity of
** the system on system-level as well as process-level.
**
** This source-file contains functions to calculate the differences for
** the system-level and process-level counters since the previous sample.
** ==========================================================================
** Author: Gerlof Langeveld
** E-mail: [email protected]
** Date: November 1996
** LINUX-port: June 2000
** --------------------------------------------------------------------------
** Copyright (C) 2000-2021 Gerlof Langeveld
**
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2, or (at your option) any
** later version.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
** --------------------------------------------------------------------------
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <signal.h>
#include <time.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
#include <memory.h>
#include <string.h>
#include "atop.h"
#include "ifprop.h"
#include "photoproc.h"
#include "photosyst.h"
static void calcdiff(struct tstat *, const struct tstat *,
const struct tstat *,
char, count_t);
static inline count_t subcount(count_t, count_t);
/*
** calculate the process-activity during the last sample
*/
void
deviattask(struct tstat *curtpres, unsigned long ntaskpres,
struct tstat *curpexit, unsigned long nprocexit,
struct devtstat *devtstat,
struct sstat *devsstat)
{
register int c, d, pall=0, pact=0;
register struct tstat *curstat, *devstat, *thisproc;
struct tstat prestat, *pprestat;
struct pinfo *pinfo;
count_t totusedcpu;
char hashtype = 'p';
/*
** needed for sanity check later on...
*/
totusedcpu = devsstat->cpu.all.stime + devsstat->cpu.all.utime +
devsstat->cpu.all.ntime + devsstat->cpu.all.itime +
devsstat->cpu.all.wtime + devsstat->cpu.all.Itime +
devsstat->cpu.all.Stime + devsstat->cpu.all.steal;
/*
** make new list of all tasks in the task-database;
** after handling all task, the left-overs are tasks
** that have disappeared since the previous sample
*/
pdb_makeresidue();
/*
** remove allocated lists of previous sample and initialize counters
*/
if (devtstat->taskall)
free(devtstat->taskall);
if (devtstat->procall)
free(devtstat->procall);
if (devtstat->procactive)
free(devtstat->procactive);
memset(devtstat, 0, sizeof *devtstat);
/*
** create list for the sample deviations of all tasks
*/
devtstat->ntaskall = ntaskpres + nprocexit;
devtstat->taskall = malloc(devtstat->ntaskall * sizeof(struct tstat));
ptrverify(devtstat->taskall, "Malloc failed for %lu deviated tasks\n",
devtstat->ntaskall);
/*
** calculate deviations per present task
*/
for (c=0, thisproc = devtstat->taskall; c < ntaskpres; c++)
{
char newtask = 0;
curstat = curtpres+c;
devstat = devtstat->taskall+c;
if (curstat->gen.isproc)
{
thisproc = devstat; // remember last process seen
devtstat->nprocall++;
if (curstat->gen.state == 'Z')
{
devtstat->totzombie++;
}
else
{
devtstat->totrun += curstat->gen.nthrrun;
devtstat->totslpi += curstat->gen.nthrslpi;
devtstat->totslpu += curstat->gen.nthrslpu;
devtstat->totidle += curstat->gen.nthridle;
}
}
/*
** get previous figures from task-database
*/
if ( pdb_gettask(curstat->gen.pid, curstat->gen.isproc,
curstat->gen.btime, &pinfo))
{
/*
** task already present in the previous sample
**
** save stats from previous sample (to use for
** further calculations) and store new statistics
** in task-database
*/
if (memcmp(curstat, &pinfo->tstat,
sizeof(struct tstat)) == EQ)
{
/*
** no activity for task
*/
curstat->gen.wasinactive = 1;
pprestat = curstat;
}
else
{
/*
** save the values of the previous sample
** and overwrite the previous sample in
** the database with the current sample
*/
prestat = pinfo->tstat;
pprestat = &prestat;
pinfo->tstat = *curstat;
curstat->gen.wasinactive = 0;
devtstat->ntaskactive++;
if (curstat->gen.isproc)
{
devtstat->nprocactive++;
}
else
{
if (thisproc->gen.wasinactive)
{
thisproc->gen.wasinactive = 0;
devtstat->ntaskactive++;
devtstat->nprocactive++;
}
}
}
}
else
{
/*
** new task which must have been started during
** last interval
*/
memset(&prestat, 0, sizeof(prestat));
pprestat = &prestat;
curstat->gen.wasinactive = 0;
devtstat->ntaskactive++;
if (curstat->gen.isproc)
{
devtstat->nprocactive++;
}
else
{
if (thisproc->gen.wasinactive)
{
thisproc->gen.wasinactive = 0;
devtstat->ntaskactive++;
devtstat->nprocactive++;
}
}
/*
** create new task struct
*/
pinfo = calloc(1, sizeof(struct pinfo));
ptrverify(pinfo, "Malloc failed for new pinfo\n");
pinfo->tstat = *curstat;
/*
** add new task to task-database
*/
pdb_addtask(curstat->gen.pid, pinfo);
newtask = 1;
}
/*
** do the difference calculations
*/
calcdiff(devstat, curstat, pprestat, newtask, totusedcpu);
}
/*
** calculate deviations per exited process
*/
if (nprocexit > 0 && supportflags&NETATOPD)
{
if (curpexit->gen.pid)
hashtype = 'p';
else
hashtype = 'b';
netatop_exithash(hashtype);
}
for (d=c, c=0; c < nprocexit; c++)
{
/*
** check if this process has been started AND
** finished since previous sample;
** if so, it has no use to check if there is still
** existing info present in the process-database
*/
curstat = curpexit+c;
curstat->gen.wasinactive = 0;
devtstat->nprocall++;
devtstat->nprocactive++;
devtstat->ntaskactive++;
if (curstat->gen.pid) /* acctrecord contains pid? */
{
if ( pdb_gettask(curstat->gen.pid, 1,
curstat->gen.btime, &pinfo))
prestat = pinfo->tstat;
else
memset(&prestat, 0, sizeof(prestat));
}
else
{
if ( curstat->gen.btime > pretime )
{
/*
** process-start and -finish in same interval
*/
memset(&prestat, 0, sizeof(prestat));
}
else
{
/*
** process must be known in process-database;
** try to match one of the remaining processes
** against this exited one
*/
if ( pdb_srchresidue(curstat, &pinfo) )
prestat = pinfo->tstat;
else
memset(&prestat, 0, sizeof(prestat));
}
}
/*
** now do the calculations
*/
devstat = devtstat->taskall+d;
memset(devstat, 0, sizeof *devstat);
devstat->gen = curstat->gen;
if ( curstat->gen.pid == 0 )
devstat->gen.pid = prestat.gen.pid;
if (!prestat.gen.pid)
devstat->gen.excode |= ~(INT_MAX);
strcpy(devstat->gen.cmdline, prestat.gen.cmdline);
strcpy(devstat->gen.utsname, prestat.gen.utsname);
devstat->cpu.curcpu = -1;
/*
** due to the strange exponent-type storage of values
** in the process accounting record, the resource-value
** in the exit-record might have been smaller than the
** stored value of the last registered sample; in that
** case the deviation should be set to zero
*/
if (curstat->cpu.stime > prestat.cpu.stime)
devstat->cpu.stime = curstat->cpu.stime -
prestat.cpu.stime;
if (curstat->cpu.utime > prestat.cpu.utime)
devstat->cpu.utime = curstat->cpu.utime -
prestat.cpu.utime;
if (curstat->mem.minflt > prestat.mem.minflt)
devstat->mem.minflt = curstat->mem.minflt -
prestat.mem.minflt;
if (curstat->mem.majflt > prestat.mem.majflt)
devstat->mem.majflt = curstat->mem.majflt -
prestat.mem.majflt;
if (curstat->dsk.rio > (prestat.dsk.rio + prestat.dsk.wio))
devstat->dsk.rio = curstat->dsk.rio -
prestat.dsk.rio -
prestat.dsk.wio;
/*
** try to match the network counters of netatop
*/
if (supportflags & NETATOPBPF)
{
unsigned long val = (hashtype == 'p' ?
curstat->gen.pid :
curstat->gen.btime);
netatop_bpf_exitfind(val, devstat, &prestat);
}
else if (supportflags & NETATOPD)
{
unsigned long val = (hashtype == 'p' ?
curstat->gen.pid :
curstat->gen.btime);
netatop_exitfind(val, devstat, &prestat);
}
/*
** handle the gpu counters
*/
if (curstat->gpu.state || prestat.gpu.state) // GPU use?
{
if (curstat->gpu.state)
devstat->gpu.state = curstat->gpu.state;
else
devstat->gpu.state = prestat.gpu.state;
devstat->gpu.nrgpus = curstat->gpu.nrgpus;
devstat->gpu.gpulist = curstat->gpu.gpulist;
devstat->gpu.gpubusy = curstat->gpu.gpubusy;
devstat->gpu.membusy = curstat->gpu.membusy;
devstat->gpu.timems = curstat->gpu.timems;
devstat->gpu.memnow = curstat->gpu.memnow;
devstat->gpu.memcum = curstat->gpu.memcum -
prestat.gpu.memcum;
devstat->gpu.sample = curstat->gpu.sample -
prestat.gpu.sample;
}
else
{
devstat->gpu.state = '\0';
}
if (prestat.gen.pid > 0)
pdb_deltask(prestat.gen.pid, prestat.gen.isproc);
d++;
}
/*
** remove unused entries from RESIDUE chain
*/
pdb_cleanresidue();
/*
** create and fill other pointer lists
*/
devtstat->procall = malloc(devtstat->nprocall *
sizeof(struct tstat *));
devtstat->procactive = malloc(devtstat->nprocactive *
sizeof(struct tstat *));
ptrverify(devtstat->procall, "Malloc failed for %d processes\n",
devtstat->nprocall);
ptrverify(devtstat->procactive, "Malloc failed for %d active procs\n",
devtstat->nprocactive);
for (c=0, thisproc=devstat=devtstat->taskall; c < devtstat->ntaskall;
c++, devstat++)
{
if (devstat->gen.isproc)
{
devtstat->procall[pall++] = devstat;
if (! devstat->gen.wasinactive)
devtstat->procactive[pact++] = devstat;
}
}
}
/*
** calculate the differences between the current sample and
** the previous sample for a task
*/
static void
calcdiff(struct tstat *devstat, const struct tstat *curstat,
const struct tstat *prestat,
char newtask, count_t totusedcpu)
{
/*
** for inactive tasks, set all counters to zero to avoid calculating
** the deviations (after all, there are no deviations)
*/
if (curstat->gen.wasinactive)
{
memset(devstat, 0, sizeof *devstat);
}
/*
** copy all STATIC values from the current task settings
*/
devstat->gen = curstat->gen;
if (newtask)
devstat->gen.excode |= ~(INT_MAX);
devstat->cpu.nice = curstat->cpu.nice;
devstat->cpu.prio = curstat->cpu.prio;
devstat->cpu.rtprio = curstat->cpu.rtprio;
devstat->cpu.policy = curstat->cpu.policy;
devstat->cpu.curcpu = curstat->cpu.curcpu;
devstat->cpu.sleepavg = curstat->cpu.sleepavg;
devstat->cpu.cgcpuweight = curstat->cpu.cgcpuweight;
devstat->cpu.cgcpumax = curstat->cpu.cgcpumax;
devstat->cpu.cgcpumaxr = curstat->cpu.cgcpumaxr;
if (curstat->cpu.wchan[0])
strcpy(devstat->cpu.wchan, curstat->cpu.wchan);
else
devstat->cpu.wchan[0] = 0;
devstat->mem.vexec = curstat->mem.vexec;
devstat->mem.vmem = curstat->mem.vmem;
devstat->mem.rmem = curstat->mem.rmem;
devstat->mem.pmem = curstat->mem.pmem;
devstat->mem.vdata = curstat->mem.vdata;
devstat->mem.vstack = curstat->mem.vstack;
devstat->mem.vlibs = curstat->mem.vlibs;
devstat->mem.vswap = curstat->mem.vswap;
devstat->mem.vlock = curstat->mem.vlock;
devstat->mem.cgmemmax = curstat->mem.cgmemmax;
devstat->mem.cgmemmaxr = curstat->mem.cgmemmaxr;
devstat->mem.cgswpmax = curstat->mem.cgswpmax;
devstat->mem.cgswpmaxr = curstat->mem.cgswpmaxr;
if (curstat->gpu.state || prestat->gpu.state) // GPU use?
{
if (curstat->gpu.state)
devstat->gpu.state = curstat->gpu.state;
else
devstat->gpu.state = prestat->gpu.state;
devstat->gpu.nrgpus = curstat->gpu.nrgpus;
devstat->gpu.gpulist = curstat->gpu.gpulist;
devstat->gpu.gpubusy = curstat->gpu.gpubusy;
devstat->gpu.membusy = curstat->gpu.membusy;
devstat->gpu.memnow = curstat->gpu.memnow;
devstat->gpu.timems = curstat->gpu.timems;
}
else
{
devstat->gpu.state = '\0';
}
/*
** for inactive tasks, only the static values had to be copied, while
** all use counters have already been set to zero
*/
if (curstat->gen.wasinactive)
return;
/*
** calculate deviations for tasks that were really active
** (i.e. modified) during the sample
*/
devstat->cpu.stime =
subcount(curstat->cpu.stime, prestat->cpu.stime);
devstat->cpu.utime =
subcount(curstat->cpu.utime, prestat->cpu.utime);
/*
** particular kernel versions sometimes supply a smaller
** amount for consumed CPU-ticks than a previous sample;
** with unsigned calculations this results in 497 days of
** CPU-consumption so a sanity-check is needed here...
*/
if (devstat->cpu.stime > totusedcpu)
devstat->cpu.stime = 1;
if (devstat->cpu.utime > totusedcpu)
devstat->cpu.utime = 1;
devstat->cpu.rundelay =
subcount(curstat->cpu.rundelay, prestat->cpu.rundelay);
devstat->cpu.blkdelay =
subcount(curstat->cpu.blkdelay, prestat->cpu.blkdelay);
if (curstat->cpu.nvcsw >= prestat->cpu.nvcsw)
devstat->cpu.nvcsw =
subcount(curstat->cpu.nvcsw, prestat->cpu.nvcsw);
else
devstat->cpu.nvcsw = curstat->cpu.nvcsw;
if (curstat->cpu.nivcsw >= prestat->cpu.nivcsw)
devstat->cpu.nivcsw =
subcount(curstat->cpu.nivcsw, prestat->cpu.nivcsw);
else
devstat->cpu.nivcsw = curstat->cpu.nivcsw;
devstat->dsk.rio =
subcount(curstat->dsk.rio, prestat->dsk.rio);
devstat->dsk.rsz =
subcount(curstat->dsk.rsz, prestat->dsk.rsz);
devstat->dsk.wio =
subcount(curstat->dsk.wio, prestat->dsk.wio);
devstat->dsk.wsz =
subcount(curstat->dsk.wsz, prestat->dsk.wsz);
devstat->dsk.cwsz =
subcount(curstat->dsk.cwsz, prestat->dsk.cwsz);
devstat->mem.vgrow = curstat->mem.vmem - prestat->mem.vmem;
devstat->mem.rgrow = curstat->mem.rmem - prestat->mem.rmem;
devstat->mem.minflt =
subcount(curstat->mem.minflt, prestat->mem.minflt);
devstat->mem.majflt =
subcount(curstat->mem.majflt, prestat->mem.majflt);
/*
** network counters: due to an unload/load of the netatop module,
** previous counters might be larger than the current
*/
if (curstat->net.tcpsnd >= prestat->net.tcpsnd)
devstat->net.tcpsnd =
subcount(curstat->net.tcpsnd, prestat->net.tcpsnd);
else
devstat->net.tcpsnd = curstat->net.tcpsnd;
if (curstat->net.tcpssz >= prestat->net.tcpssz)
devstat->net.tcpssz =
subcount(curstat->net.tcpssz, prestat->net.tcpssz);
else
devstat->net.tcpssz = curstat->net.tcpssz;
if (curstat->net.tcprcv >= prestat->net.tcprcv)
devstat->net.tcprcv =
subcount(curstat->net.tcprcv, prestat->net.tcprcv);
else
devstat->net.tcprcv = curstat->net.tcprcv;
if (curstat->net.tcprsz >= prestat->net.tcprsz)
devstat->net.tcprsz =
subcount(curstat->net.tcprsz, prestat->net.tcprsz);
else
devstat->net.tcprsz = curstat->net.tcprsz;
if (curstat->net.udpsnd >= prestat->net.udpsnd)
devstat->net.udpsnd =
subcount(curstat->net.udpsnd, prestat->net.udpsnd);
else
devstat->net.udpsnd = curstat->net.udpsnd;
if (curstat->net.udpssz >= prestat->net.udpssz)
devstat->net.udpssz =
subcount(curstat->net.udpssz, prestat->net.udpssz);
else
devstat->net.udpssz = curstat->net.udpssz;
if (curstat->net.udprcv >= prestat->net.udprcv)
devstat->net.udprcv =
subcount(curstat->net.udprcv, prestat->net.udprcv);
else
devstat->net.udprcv = curstat->net.udprcv;
if (curstat->net.udprsz >= prestat->net.udprsz)
devstat->net.udprsz =
subcount(curstat->net.udprsz, prestat->net.udprsz);
else
devstat->net.udprsz = curstat->net.udprsz;
if (curstat->gpu.state)
{
devstat->gpu.memcum = curstat->gpu.memcum - prestat->gpu.memcum;
devstat->gpu.sample = curstat->gpu.sample - prestat->gpu.sample;
}
}
/*
** calculate the system-activity during the last sample
*/
void
deviatsyst(struct sstat *cur, struct sstat *pre, struct sstat *dev,
long interval)
{
register int i, j;
count_t *cdev, *ccur, *cpre;
struct ifprop ifprop;
dev->cpu.nrcpu = cur->cpu.nrcpu;
dev->cpu.devint = subcount(cur->cpu.devint, pre->cpu.devint);
dev->cpu.csw = subcount(cur->cpu.csw, pre->cpu.csw);
dev->cpu.nprocs = subcount(cur->cpu.nprocs, pre->cpu.nprocs);
dev->cpu.all.stime = subcount(cur->cpu.all.stime, pre->cpu.all.stime);
dev->cpu.all.utime = subcount(cur->cpu.all.utime, pre->cpu.all.utime);
dev->cpu.all.ntime = subcount(cur->cpu.all.ntime, pre->cpu.all.ntime);
dev->cpu.all.itime = subcount(cur->cpu.all.itime, pre->cpu.all.itime);
dev->cpu.all.wtime = subcount(cur->cpu.all.wtime, pre->cpu.all.wtime);
dev->cpu.all.Itime = subcount(cur->cpu.all.Itime, pre->cpu.all.Itime);
dev->cpu.all.Stime = subcount(cur->cpu.all.Stime, pre->cpu.all.Stime);
dev->cpu.all.steal = subcount(cur->cpu.all.steal, pre->cpu.all.steal);
dev->cpu.all.guest = subcount(cur->cpu.all.guest, pre->cpu.all.guest);
dev->cpu.all.instr = subcount(cur->cpu.all.instr, pre->cpu.all.instr);
dev->cpu.all.cycle = subcount(cur->cpu.all.cycle, pre->cpu.all.cycle);
for (i=0; i < dev->cpu.nrcpu; i++)
{
count_t ticks;
dev->cpu.cpu[i].cpunr = cur->cpu.cpu[i].cpunr;
dev->cpu.cpu[i].stime = subcount(cur->cpu.cpu[i].stime,
pre->cpu.cpu[i].stime);
dev->cpu.cpu[i].utime = subcount(cur->cpu.cpu[i].utime,
pre->cpu.cpu[i].utime);
dev->cpu.cpu[i].ntime = subcount(cur->cpu.cpu[i].ntime,
pre->cpu.cpu[i].ntime);
dev->cpu.cpu[i].itime = subcount(cur->cpu.cpu[i].itime,
pre->cpu.cpu[i].itime);
dev->cpu.cpu[i].wtime = subcount(cur->cpu.cpu[i].wtime,
pre->cpu.cpu[i].wtime);
dev->cpu.cpu[i].Itime = subcount(cur->cpu.cpu[i].Itime,
pre->cpu.cpu[i].Itime);
dev->cpu.cpu[i].Stime = subcount(cur->cpu.cpu[i].Stime,
pre->cpu.cpu[i].Stime);
dev->cpu.cpu[i].steal = subcount(cur->cpu.cpu[i].steal,
pre->cpu.cpu[i].steal);
dev->cpu.cpu[i].guest = subcount(cur->cpu.cpu[i].guest,
pre->cpu.cpu[i].guest);
dev->cpu.cpu[i].instr = subcount(cur->cpu.cpu[i].instr,
pre->cpu.cpu[i].instr);
dev->cpu.cpu[i].cycle = subcount(cur->cpu.cpu[i].cycle,
pre->cpu.cpu[i].cycle);
ticks = cur->cpu.cpu[i].freqcnt.ticks;
dev->cpu.cpu[i].freqcnt.maxfreq =
cur->cpu.cpu[i].freqcnt.maxfreq;
dev->cpu.cpu[i].freqcnt.cnt = ticks ?
subcount(cur->cpu.cpu[i].freqcnt.cnt,
pre->cpu.cpu[i].freqcnt.cnt)
: cur->cpu.cpu[i].freqcnt.cnt;
dev->cpu.cpu[i].freqcnt.ticks = ticks ?
subcount(cur->cpu.cpu[i].freqcnt.ticks,
pre->cpu.cpu[i].freqcnt.ticks)
: cur->cpu.cpu[i].freqcnt.ticks;
}
dev->cpu.lavg1 = cur->cpu.lavg1;
dev->cpu.lavg5 = cur->cpu.lavg5;
dev->cpu.lavg15 = cur->cpu.lavg15;
dev->mem.physmem = cur->mem.physmem;
dev->mem.freemem = cur->mem.freemem;
dev->mem.availablemem = cur->mem.availablemem;
dev->mem.buffermem = cur->mem.buffermem;
dev->mem.slabmem = cur->mem.slabmem;
dev->mem.slabreclaim = cur->mem.slabreclaim;
dev->mem.committed = cur->mem.committed;
dev->mem.commitlim = cur->mem.commitlim;
dev->mem.cachemem = cur->mem.cachemem;
dev->mem.cachedrt = cur->mem.cachedrt;
dev->mem.totswap = cur->mem.totswap;
dev->mem.freeswap = cur->mem.freeswap;
dev->mem.swapcached = cur->mem.swapcached;
dev->mem.pagetables = cur->mem.pagetables;
dev->mem.zswap = cur->mem.zswap;
dev->mem.zswapped = cur->mem.zswapped;
dev->mem.shmem = cur->mem.shmem;
dev->mem.shmrss = cur->mem.shmrss;
dev->mem.shmswp = cur->mem.shmswp;
dev->mem.stothugepage = cur->mem.stothugepage;
dev->mem.sfreehugepage = cur->mem.sfreehugepage;
dev->mem.shugepagesz = cur->mem.shugepagesz;
dev->mem.ltothugepage = cur->mem.ltothugepage;
dev->mem.lfreehugepage = cur->mem.lfreehugepage;
dev->mem.lhugepagesz = cur->mem.lhugepagesz;
dev->mem.vmwballoon = cur->mem.vmwballoon;
dev->mem.zfsarcsize = cur->mem.zfsarcsize;
dev->mem.ksmsharing = cur->mem.ksmsharing;
dev->mem.ksmshared = cur->mem.ksmshared;
dev->mem.tcpsock = cur->mem.tcpsock;
dev->mem.udpsock = cur->mem.udpsock;
dev->mem.pgouts = subcount(cur->mem.pgouts, pre->mem.pgouts);
dev->mem.pgins = subcount(cur->mem.pgins, pre->mem.pgins);
dev->mem.swouts = subcount(cur->mem.swouts, pre->mem.swouts);
dev->mem.swins = subcount(cur->mem.swins, pre->mem.swins);
dev->mem.zswouts = subcount(cur->mem.zswouts, pre->mem.zswouts);
dev->mem.zswins = subcount(cur->mem.zswins, pre->mem.zswins);
dev->mem.pgscans = subcount(cur->mem.pgscans, pre->mem.pgscans);
dev->mem.pgsteal = subcount(cur->mem.pgsteal, pre->mem.pgsteal);
dev->mem.allocstall = subcount(cur->mem.allocstall,
pre->mem.allocstall);
if (cur->mem.oomkills != -1)
dev->mem.oomkills = subcount(cur->mem.oomkills, pre->mem.oomkills);
else
dev->mem.oomkills = -1;
dev->mem.compactstall = subcount(cur->mem.compactstall,
pre->mem.compactstall);
dev->mem.numamigrate = subcount(cur->mem.numamigrate, pre->mem.numamigrate);
dev->mem.pgmigrate = subcount(cur->mem.pgmigrate, pre->mem.pgmigrate);
dev->memnuma.nrnuma = cur->memnuma.nrnuma;
for (i=0; i < dev->memnuma.nrnuma; i++)
{
dev->memnuma.numa[i].numanr = cur->memnuma.numa[i].numanr;
dev->memnuma.numa[i].totmem = cur->memnuma.numa[i].totmem;
dev->memnuma.numa[i].freemem = cur->memnuma.numa[i].freemem;
dev->memnuma.numa[i].filepage = cur->memnuma.numa[i].filepage;
dev->memnuma.numa[i].active = cur->memnuma.numa[i].active;
dev->memnuma.numa[i].inactive = cur->memnuma.numa[i].inactive;
dev->memnuma.numa[i].dirtymem = cur->memnuma.numa[i].dirtymem;
dev->memnuma.numa[i].shmem = cur->memnuma.numa[i].shmem;
dev->memnuma.numa[i].slabmem = cur->memnuma.numa[i].slabmem;
dev->memnuma.numa[i].slabreclaim = cur->memnuma.numa[i].slabreclaim;
dev->memnuma.numa[i].tothp = cur->memnuma.numa[i].tothp;
dev->memnuma.numa[i].frag = cur->memnuma.numa[i].frag;
}
dev->cpunuma.nrnuma = cur->cpunuma.nrnuma;
if (dev->cpunuma.nrnuma > 1)
{
for (i=0; i < dev->cpunuma.nrnuma; i++)
{
dev->cpunuma.numa[i].nrcpu = cur->cpunuma.numa[i].nrcpu;
dev->cpunuma.numa[i].numanr = cur->cpunuma.numa[i].numanr;
dev->cpunuma.numa[i].utime = subcount(cur->cpunuma.numa[i].utime,
pre->cpunuma.numa[i].utime);
dev->cpunuma.numa[i].ntime = subcount(cur->cpunuma.numa[i].ntime,
pre->cpunuma.numa[i].ntime);
dev->cpunuma.numa[i].stime = subcount(cur->cpunuma.numa[i].stime,
pre->cpunuma.numa[i].stime);
dev->cpunuma.numa[i].itime = subcount(cur->cpunuma.numa[i].itime,
pre->cpunuma.numa[i].itime);
dev->cpunuma.numa[i].wtime = subcount(cur->cpunuma.numa[i].wtime,
pre->cpunuma.numa[i].wtime);
dev->cpunuma.numa[i].Itime = subcount(cur->cpunuma.numa[i].Itime,
pre->cpunuma.numa[i].Itime);
dev->cpunuma.numa[i].Stime = subcount(cur->cpunuma.numa[i].Stime,
pre->cpunuma.numa[i].Stime);
dev->cpunuma.numa[i].steal = subcount(cur->cpunuma.numa[i].steal,
pre->cpunuma.numa[i].steal);
dev->cpunuma.numa[i].guest = subcount(cur->cpunuma.numa[i].guest,
pre->cpunuma.numa[i].guest);
}
}
dev->psi = cur->psi;
if (cur->psi.present)
{
dev->psi.cpusome.total = cur->psi.cpusome.total -
pre->psi.cpusome.total;
dev->psi.memsome.total = cur->psi.memsome.total -
pre->psi.memsome.total;
dev->psi.memfull.total = cur->psi.memfull.total -
pre->psi.memfull.total;
dev->psi.iosome.total = cur->psi.iosome.total -
pre->psi.iosome.total;
dev->psi.iofull.total = cur->psi.iofull.total -
pre->psi.iofull.total;
}
/*
** structures with network-related counters are considered
** as tables of frequency-counters that have to be subtracted;
** values that do not represent a frequency are corrected afterwards
*/
for (cdev = (count_t *)&dev->net.ipv4,
ccur = (count_t *)&cur->net.ipv4,
cpre = (count_t *)&pre->net.ipv4,
i = 0;
i < (sizeof dev->net.ipv4 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
dev->net.ipv4.Forwarding = cur->net.ipv4.Forwarding;
dev->net.ipv4.DefaultTTL = cur->net.ipv4.DefaultTTL;
/* ------------- */
for (cdev = (count_t *)&dev->net.icmpv4,
ccur = (count_t *)&cur->net.icmpv4,
cpre = (count_t *)&pre->net.icmpv4,
i = 0;
i < (sizeof dev->net.icmpv4 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
/* ------------- */
for (cdev = (count_t *)&dev->net.udpv4,
ccur = (count_t *)&cur->net.udpv4,
cpre = (count_t *)&pre->net.udpv4,
i = 0;
i < (sizeof dev->net.udpv4 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
/* ------------- */
for (cdev = (count_t *)&dev->net.ipv6,
ccur = (count_t *)&cur->net.ipv6,
cpre = (count_t *)&pre->net.ipv6,
i = 0;
i < (sizeof dev->net.ipv6 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
/* ------------- */
for (cdev = (count_t *)&dev->net.icmpv6,
ccur = (count_t *)&cur->net.icmpv6,
cpre = (count_t *)&pre->net.icmpv6,
i = 0;
i < (sizeof dev->net.icmpv6 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
/* ------------- */
for (cdev = (count_t *)&dev->net.udpv6,
ccur = (count_t *)&cur->net.udpv6,
cpre = (count_t *)&pre->net.udpv6,
i = 0;
i < (sizeof dev->net.udpv6 / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
/* ------------- */
for (cdev = (count_t *)&dev->net.tcp,
ccur = (count_t *)&cur->net.tcp,
cpre = (count_t *)&pre->net.tcp,
i = 0;
i < (sizeof dev->net.tcp / sizeof(count_t));
cdev++, ccur++, cpre++, i++)
*cdev = *ccur - *cpre;
dev->net.tcp.RtoAlgorithm = cur->net.tcp.RtoAlgorithm;
dev->net.tcp.RtoMin = cur->net.tcp.RtoMin;
dev->net.tcp.RtoMax = cur->net.tcp.RtoMax;
dev->net.tcp.MaxConn = cur->net.tcp.MaxConn;
dev->net.tcp.CurrEstab = cur->net.tcp.CurrEstab;
/*
** calculate deviations for interfaces
*/
for (i=0; cur->intf.intf[i].name[0]; i++)
{
// fill current properties for each valid interface
strcpy(ifprop.name, cur->intf.intf[i].name);
getifprop(&ifprop);
cur->intf.intf[i].type = ifprop.type;
cur->intf.intf[i].speed = ifprop.speed;
cur->intf.intf[i].speedp = ifprop.speed;
cur->intf.intf[i].duplex = ifprop.fullduplex;
}
if (pre->intf.intf[0].name[0] == '\0') /* first sample? */
{
for (i=0; cur->intf.intf[i].name[0]; i++)
{
strcpy(pre->intf.intf[i].name, cur->intf.intf[i].name);
pre->intf.intf[i].type = cur->intf.intf[i].type;
pre->intf.intf[i].speed = cur->intf.intf[i].speed;
pre->intf.intf[i].speedp = cur->intf.intf[i].speedp;
pre->intf.intf[i].duplex = cur->intf.intf[i].duplex;
}
}
for (i=0, j=0; cur->intf.intf[i].name[0]; i++, j++)
{
/*
** be sure that we have the same interface
** (interfaces could have been added or removed since
** previous sample)
*/
if (strcmp(cur->intf.intf[i].name, pre->intf.intf[j].name) != 0)
{
// try to resync
for (j=0; pre->intf.intf[j].name[0]; j++)
{
if (strcmp(cur->intf.intf[i].name,
pre->intf.intf[j].name) == 0)
break;
}
// resync not succeeded?
if (! pre->intf.intf[j].name[0])
{
memcpy(&dev->intf.intf[i],
&cur->intf.intf[i],
sizeof cur->intf.intf[i]);
j = 0;
continue;
}
}
/*
** calculate interface deviations for this sample
*/
strcpy(dev->intf.intf[i].name, cur->intf.intf[i].name);
dev->intf.intf[i].rbyte = subcount(cur->intf.intf[i].rbyte,
pre->intf.intf[j].rbyte);
dev->intf.intf[i].rpack = subcount(cur->intf.intf[i].rpack,
pre->intf.intf[j].rpack);
dev->intf.intf[i].rerrs = subcount(cur->intf.intf[i].rerrs,
pre->intf.intf[j].rerrs);
dev->intf.intf[i].rdrop = subcount(cur->intf.intf[i].rdrop,
pre->intf.intf[j].rdrop);
dev->intf.intf[i].rfifo = subcount(cur->intf.intf[i].rfifo,
pre->intf.intf[j].rfifo);
dev->intf.intf[i].rframe= subcount(cur->intf.intf[i].rframe,
pre->intf.intf[j].rframe);
dev->intf.intf[i].rcompr= subcount(cur->intf.intf[i].rcompr,
pre->intf.intf[j].rcompr);
dev->intf.intf[i].rmultic=subcount(cur->intf.intf[i].rmultic,
pre->intf.intf[j].rmultic);
dev->intf.intf[i].sbyte = subcount(cur->intf.intf[i].sbyte,
pre->intf.intf[j].sbyte);
dev->intf.intf[i].spack = subcount(cur->intf.intf[i].spack,
pre->intf.intf[j].spack);
dev->intf.intf[i].serrs = subcount(cur->intf.intf[i].serrs,