Re: [zones-discuss] Zones and Resource Pools
James Carlson wrote: Jeff Victor writes: Information about zone->pool assignment 'feels' like it belongs in "zoneadm list" output (analogous to zonepath), It certainly doesn't "feel" that way to me. I expect "zoneadm list" to produce the information that's *crucial* for the operation of the zone. It's the stuff that defines the identity and location of the zone. Having realized that one could argue both sides of that, the more I think about it the more I like the "containerstat" concept. I hope to find time to ponder that and submit an RFE. -- Jeff VICTOR Sun Microsystemsjeff.victor @ sun.com OS AmbassadorSr. Technical Specialist Solaris 10 Zones FAQ:http://www.opensolaris.org/os/community/zones/faq -- ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Zones and Resource Pools
Jeff Victor writes: > Information about zone->pool assignment 'feels' like it belongs in "zoneadm > list" output (analogous to zonepath), It certainly doesn't "feel" that way to me. I expect "zoneadm list" to produce the information that's *crucial* for the operation of the zone. It's the stuff that defines the identity and location of the zone. Just as I don't expect zoneadm to list what processes are running in a given zone, or what IP addresses are configured, I don't expect it to list out pool assignments or other ancillary run-time information. I expect to use pool-resource-related tools (perhaps with Zones extensions) to do that, or zonecfg if I'm interested in the start-time configuration of the zone. -- James Carlson, Solaris Networking <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Zones and Resource Pools
Phil Freund wrote:
I have started using resource pools to limit the number of CPUs available to a
zone. I'm trying to find a way to track the pool assignment info and have the
following questions:
Is there a command that will tell me which pools my zones are assigned to or do I have to
check in each zone config for the value listed in the "pool=" parameter of the
zone name?
Is there any pool related command that will tell me which resources, including
zones, are assigned to each pool?
Although you can bind a zone to a pool, behind the scenes the system
does not really track a zone-to-pool binding. This is managed at
the process level. You can look at the zones to see what pools
they are assigned to but that information might not be correct
since the zone can be dynamically bound to a different pool using
poolbind(1M).
I have attached the source to a small program I wrote which prints
some resource management information about processes. Most of
this is available via ps(1), but pool binding is not, so you might
find this useful. You could trim the code down to only print the
pool binding for the 'init' process in each zone and that would give
you a good idea which pool the running zone is currently bound to.
We have talked about improving zone observability for stuff like this
but we haven't gotten that project off the ground yet.
Jerry
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
static void
pr_pid(boolean_t pactive)
{
DIR *dirp;
int procfd;
dirent_t *dent;
psinfo_t ps;
struct project *pp, proj;
char zname[ZONENAME_MAX];
char procpath[MAXPATHLEN];
char pname[32];
char buf[1024];
if ((dirp = opendir("/proc")) == NULL) {
perror("can't open /proc");
exit(1);
}
printf("%6s %6s %3s %12s %8s %12s %4s %s\n", "pid", "ppid",
"tsk", "project", "zone", "pool", "schd", "process");
while ((dent = readdir(dirp)) != NULL) {
if (dent->d_name[0] == '.')
continue;
(void) snprintf(procpath, sizeof (procpath), "/proc/%s/psinfo",
dent->d_name);
if ((procfd = open(procpath, O_RDONLY)) == -1)
continue;
if (read(procfd, &ps, sizeof (ps)) == sizeof (psinfo_t)) {
getzonenamebyid(ps.pr_zoneid, zname, sizeof (zname));
pp = getprojbyid(ps.pr_projid, &proj, buf,
sizeof (buf));
if (pp == NULL)
snprintf(pname, sizeof (pname), "%d",
ps.pr_projid);
else
strlcpy(pname, pp->pj_name, sizeof (pname));
printf("%6d %6d %3d %12s %8s %12s %4s %s\n",
ps.pr_pid, ps.pr_ppid,
ps.pr_taskid, pname,
zname,
(pactive ? pool_get_binding(ps.pr_pid) : ""),
ps.pr_lwp.pr_clname,
ps.pr_fname);
}
(void) close(procfd);
}
closedir(dirp);
}
main(int argc, char **argv)
{
int status;
boolean_t pactive = B_FALSE;
if (pool_get_status(&status) == PO_SUCCESS && status == POOL_ENABLED)
pactive = B_TRUE;
pr_pid(pactive);
}
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Re: [zones-discuss] Zones and Resource Pools
Phil Freund wrote: I have started using resource pools to limit the number of CPUs available to a zone. I'm trying to find a way to track the pool assignment info and have the following questions: Is there a command that will tell me which pools my zones are assigned to or do I have to check in each zone config for the value listed in the "pool=" parameter of the zone name? I can't think of a command which will do this - though it seems to me that it would be a useful tool - but the same functionality could be scripted with a combination of zonecfg and pooladm. Information about zone->pool assignment 'feels' like it belongs in "zoneadm list" output (analogous to zonepath), but leads us further down the slippery slope of "what *else* belongs in there?" We might end up with a -o option to zoneadm similar to ps, and I'm not sure that's a Good Idea. Perhaps a "containeradm" (or "constat") command is needed to manage or at least display information regarding containers. Project Duckhorn will simplify some of this, see opensolaris.org. Is there any pool related command that will tell me which resources, including zones, are assigned to each pool? TIA, Phil Pooladm is as close as it gets. I can't find an RFE for these. If there isn't a command or simple solution, I'll create an RFE. -- Jeff VICTOR Sun Microsystemsjeff.victor @ sun.com OS AmbassadorSr. Technical Specialist Solaris 10 Zones FAQ:http://www.opensolaris.org/os/community/zones/faq -- ___ zones-discuss mailing list zones-discuss@opensolaris.org
[zones-discuss] Zones and Resource Pools
I have started using resource pools to limit the number of CPUs available to a zone. I'm trying to find a way to track the pool assignment info and have the following questions: Is there a command that will tell me which pools my zones are assigned to or do I have to check in each zone config for the value listed in the "pool=" parameter of the zone name? Is there any pool related command that will tell me which resources, including zones, are assigned to each pool? TIA, Phil This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
