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4e85324729
openafs/doc/man-pages/pod1
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Mark Vitale 4e85324729 xstat: prevent CPU loop when -period 0 
Historically xstat_cm_test and xstat_fs_test have supported option
'-period <mm>' to specify continuous operaiton for a length of time.  If
'-period 0' was specified, both programs exited immediately.

Beginning with commits 2c1a7e4733 'xstat:
add xstat_*_Wait functions' and 6b67cac432
'convert xstat and friends to pthreads', xstat_cm_test and xstat_fs_test
now support -period 0 to run "forever".  This support is implemented in
xstat_cm_Wait and xstat_fs_Wait, respectively.  Although the "wait
forever" logic was added to allow consolidation of similar code in
afsmonitor, it also changed how xstat_cm_test and xstat_fs_test behave
for '-period 0'.

Unfortunately, there is a bug in this support, at least when running on
pthreads.  After the initial 24 minute timer expires, the while (1) will
repeatedly run select with a timeout that is now 0.  This causes the
while loop to consume 100% of the CPU on which this thread is
dispatched.

Instead, modify the wait-forever logic to specify NULL for the select()
timeout value.  Also update the man page to document that '-period 0'
means forever.

Change-Id: I25d0d5be0eedb8bf3de495785b9b03a3e3d45221
Reviewed-on: https://gerrit.openafs.org/14366
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
2020-10-23 11:41:30 -04:00
..
fragments doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
.gitignore vos: remaddrs sub-command 2015-03-22 13:12:57 -04:00
afs_compile_et.pod comerr: compile_et -emit option for parallel make 2014-01-29 07:20:44 -08:00
afs.pod doc: the last partition name is /vicepiu 2018-09-14 08:35:26 -04:00
afsmonitor.pod doc: document the version subcommand 2015-11-12 11:29:37 -05:00
aklog.pod aklog: require opt-in to enable single-DES in libkrb5 2019-07-17 17:40:16 -04:00
cmdebug.pod doc: -afsdb uses SRV records 2011-05-17 13:20:26 -07:00
copyauth.pod
dlog.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_apropos.pod
fs_bypassthreshold.pod doc: Add fs bypassthreshold man page 2012-07-05 20:50:50 -07:00
fs_checkservers.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_checkvolumes.pod
fs_chgrp.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_chown.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_cleanacl.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_copyacl.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_cscpolicy.pod
fs_discon.pod doc: Add 'fs discon' manpage 2013-11-04 12:21:27 -08:00
fs_diskfree.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_examine.pod doc: fs examine no longer requires read rights on the volume root vnode 2016-03-19 15:53:03 -04:00
fs_exportafs.pod doc: fs manpage fixes 2013-11-04 04:09:26 -08:00
fs_flush.pod
fs_flushall.pod libafs: fs flushall for unix cm 2013-01-24 08:35:40 -08:00
fs_flushmount.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_flushvolume.pod
fs_getcacheparms.pod Document the extra options to fs getcacheparms 2010-02-03 07:53:24 -08:00
fs_getcalleraccess.pod
fs_getcellstatus.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_getclientaddrs.pod
fs_getcrypt.pod Fix spelling error in fs_getcrypt man page 2013-06-18 11:33:42 -07:00
fs_getfid.pod doc: fs manpage fixes 2013-11-04 04:09:26 -08:00
fs_getserverprefs.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_getverify.pod Fix spelling error in fs_getverify man page 2013-06-29 23:27:41 -07:00
fs_help.pod
fs_listacl.pod Remove references to IBM AFS 2010-05-26 12:05:45 -07:00
fs_listaliases.pod spelling/grammar fixes for manpages 2011-02-03 12:29:34 -08:00
fs_listcells.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_listquota.pod.in doc: Document fs listquota 2TB partition limit 2014-12-03 01:02:20 -05:00
fs_lsmount.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_memdump.pod
fs_messages.pod
fs_minidump.pod Docs: Specify where the Windows mini dump file is written 2010-11-02 20:29:01 -07:00
fs_mkmount.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_monitor.pod
fs_newalias.pod doc: fix a nit in fs_newalias.pod 2013-12-18 07:37:05 -08:00
fs_newcell.pod doc: add linked cells description to man pages 2013-11-01 18:53:13 -07:00
fs_nukenfscreds.pod doc: Add 'fs nukenfscreds' manpage 2013-11-04 12:20:58 -08:00
fs_precache.pod doc: Add 'fs precache' manpage 2013-11-04 12:20:29 -08:00
fs_quota.pod.in doc: Fix whitespace errors 2012-07-03 07:30:39 -07:00
fs_rmmount.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_rxstatpeer.pod
fs_rxstatproc.pod doc: fs manpage fixes 2013-11-04 04:09:26 -08:00
fs_setacl.pod doc: fix typo in fs setacl 2014-01-22 17:51:12 -08:00
fs_setcachesize.pod Document human-readable size suffixes 2009-07-25 07:10:52 -07:00
fs_setcbaddr.pod doc: fs manpage fixes 2013-11-04 04:09:26 -08:00
fs_setcell.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_setclientaddrs.pod
fs_setcrypt.pod doc: clarify setcrypt defaults 2013-08-02 08:58:56 -07:00
fs_setquota.pod.in doc: Consolidate CAUTIONS notes about volume size 2012-07-03 07:30:17 -07:00
fs_setserverprefs.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_setverify.pod man-pages: add fs_getverify and fs_setverify 2012-01-29 13:54:36 -08:00
fs_setvol.pod.in doc: Consolidate CAUTIONS notes about volume size 2012-07-03 07:30:17 -07:00
fs_storebehind.pod doc: fix some broken link specifications 2011-06-22 11:01:09 -07:00
fs_sysname.pod Remove support for Solaris pre-8 2011-06-30 07:27:39 -07:00
fs_trace.pod
fs_uuid.pod
fs_whereis.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
fs_whichcell.pod doc: fs manpage fixes 2013-11-04 04:09:26 -08:00
fs_wscell.pod doc: clarify the fs wscell manpage 2017-03-02 22:38:59 -05:00
fs.pod doc: document the version subcommand 2015-11-12 11:29:37 -05:00
klog.krb5.pod aklog: require opt-in to enable single-DES in libkrb5 2019-07-17 17:40:16 -04:00
klog.pod doc: state klog.krb is obsolete 2013-09-30 06:31:56 -07:00
knfs.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
kpasswd.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
livesys.pod doc: Fix livesys output formatting 2013-11-04 12:18:48 -08:00
pagsh.pod doc: fix some broken link specifications 2011-06-22 11:01:09 -07:00
pts_adduser.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_apropos.pod
pts_chown.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_creategroup.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_createuser.pod.in Disallow creating users with ANONYMOUSID 2014-11-22 21:37:27 -05:00
pts_delete.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_examine.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_help.pod
pts_interactive.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_listentries.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_listmax.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_listowned.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_membership.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_quit.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_removeuser.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_rename.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_setfields.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_setmax.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_sleep.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts_source.pod.in doc: pts manpage fixes 2013-11-03 20:36:16 -08:00
pts.pod doc: Document new rxgk options 2020-01-08 00:15:42 -05:00
restorevol.pod doc: restorevol manpage fixes 2013-11-04 04:09:12 -08:00
rxdebug.pod doc: rxdebug manpage fixes 2013-11-04 11:57:07 -08:00
rxgen.pod Remove sunrpc compatibility 2014-12-17 10:51:33 -05:00
scout.pod doc: document the version subcommand 2015-11-12 11:29:37 -05:00
symlink_list.pod
symlink_make.pod
symlink_remove.pod
symlink.pod Add POD links (L<>) in pts.pod and symlink.pod 2009-10-08 11:00:14 -07:00
sys.pod Remove support for Solaris pre-8 2011-06-30 07:27:39 -07:00
tokens.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
translate_et.pod
udebug.pod doc: Fix udebug -port bullet list 2013-11-03 20:36:42 -08:00
unlog.pod doc: replace hostnames with IETF example hostnames 2012-02-17 20:51:58 -08:00
up.pod
vos_addsite.pod.in doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
vos_apropos.pod
vos_backup.pod.in doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
vos_backupsys.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_changeaddr.pod.in vos: changeaddr refuse to change mh entries without -force 2015-07-24 00:29:32 -04:00
vos_changeloc.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_clone.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_convertROtoRW.pod.in doc: recommend cleanup steps in "vos convertROtoRW" man page 2014-04-23 21:54:07 -07:00
vos_copy.pod.in doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
vos_create.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_delentry.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_dump.pod.in doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
vos_endtrans.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_examine.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_help.pod
vos_listaddrs.pod.in vos: remaddrs sub-command 2015-03-22 13:12:57 -04:00
vos_listpart.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_listvldb.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_listvol.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_lock.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_move.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_offline.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_online.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_partinfo.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_release.pod.in vos: desupport -stayonline 2015-06-16 13:51:59 -04:00
vos_remaddrs.pod.in vos: remaddrs sub-command 2015-03-22 13:12:57 -04:00
vos_remove.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_remsite.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_rename.pod.in vos: fix name availability check in vos rename 2020-01-31 12:54:51 -05:00
vos_restore.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_setaddrs.pod.in vos: remaddrs sub-command 2015-03-22 13:12:57 -04:00
vos_setfields.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_shadow.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_size.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_status.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_syncserv.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_syncvldb.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_unlock.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_unlockvldb.pod.in doc: Make all vos pages =include common options 2013-11-04 09:32:57 -08:00
vos_zap.pod.in doc: vos manpage fixes 2013-11-04 09:32:48 -08:00
vos.pod.in doc: Document new rxgk options 2020-01-08 00:15:42 -05:00
xstat_cm_test.pod doc: document the version subcommand 2015-11-12 11:29:37 -05:00
xstat_fs_test.pod xstat: prevent CPU loop when -period 0 2020-10-23 11:41:30 -04:00