diff options
Diffstat (limited to 'usr/src/uts/common/os/msacct.c')
| -rw-r--r-- | usr/src/uts/common/os/msacct.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/usr/src/uts/common/os/msacct.c b/usr/src/uts/common/os/msacct.c index 928c6b3bb4..66994321f7 100644 --- a/usr/src/uts/common/os/msacct.c +++ b/usr/src/uts/common/os/msacct.c @@ -21,6 +21,7 @@ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. + * Copyright 2012 Joyent, Inc. All rights reserved. */ #include <sys/types.h> @@ -566,27 +567,18 @@ cpu_update_pct(kthread_t *t, hrtime_t newtime) */ do { - if (T_ONPROC(t) && t->t_waitrq == 0) { - hrlb = t->t_hrtime; + pctcpu = t->t_pctcpu; + hrlb = t->t_hrtime; + delta = newtime - hrlb; + if (delta < 0) { + newtime = gethrtime_unscaled(); delta = newtime - hrlb; - if (delta < 0) { - newtime = gethrtime_unscaled(); - delta = newtime - hrlb; - } - t->t_hrtime = newtime; - scalehrtime(&delta); - pctcpu = t->t_pctcpu; + } + t->t_hrtime = newtime; + scalehrtime(&delta); + if (T_ONPROC(t) && t->t_waitrq == 0) { npctcpu = cpu_grow(pctcpu, delta); } else { - hrlb = t->t_hrtime; - delta = newtime - hrlb; - if (delta < 0) { - newtime = gethrtime_unscaled(); - delta = newtime - hrlb; - } - t->t_hrtime = newtime; - scalehrtime(&delta); - pctcpu = t->t_pctcpu; npctcpu = cpu_decay(pctcpu, delta); } } while (atomic_cas_32(&t->t_pctcpu, pctcpu, npctcpu) != pctcpu); |