diff options
| author | julian <julian@FreeBSD.org> | 2001-09-12 08:38:13 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 2001-09-12 08:38:13 +0000 |
| commit | 5596676e6c6c1e81e899cd0531f9b1c28a292669 (patch) | |
| tree | b1a19fcdf05759281fab0d89efb13f0fdf42102e /sys/kern/tty.c | |
| parent | 83e00d4274950d2b531c24692cd123538ffbddb9 (diff) | |
| download | FreeBSD-src-5596676e6c6c1e81e899cd0531f9b1c28a292669.zip FreeBSD-src-5596676e6c6c1e81e899cd0531f9b1c28a292669.tar.gz | |
KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.
Sorry john! (your next MFC will be a doosie!)
Reviewed by: peter@freebsd.org, dillon@freebsd.org
X-MFC after: ha ha ha ha
Diffstat (limited to 'sys/kern/tty.c')
| -rw-r--r-- | sys/kern/tty.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/sys/kern/tty.c b/sys/kern/tty.c index 1095864..a4d42fc 100644 --- a/sys/kern/tty.c +++ b/sys/kern/tty.c @@ -1065,10 +1065,10 @@ ttioctl(tp, cmd, data, flag) } int -ttypoll(dev, events, p) +ttypoll(dev, events, td) dev_t dev; int events; - struct proc *p; + struct thread *td; { int s; int revents = 0; @@ -1084,7 +1084,7 @@ ttypoll(dev, events, p) if (ttnread(tp) > 0 || ISSET(tp->t_state, TS_ZOMBIE)) revents |= events & (POLLIN | POLLRDNORM); else - selrecord(p, &tp->t_rsel); + selrecord(td, &tp->t_rsel); } if (events & (POLLOUT | POLLWRNORM)) { if ((tp->t_outq.c_cc <= tp->t_olowat && @@ -1092,7 +1092,7 @@ ttypoll(dev, events, p) || ISSET(tp->t_state, TS_ZOMBIE)) revents |= events & (POLLOUT | POLLWRNORM); else - selrecord(p, &tp->t_wsel); + selrecord(td, &tp->t_wsel); } splx(s); return (revents); @@ -2337,8 +2337,8 @@ ttyinfo(tp) if (proc_compare(pick, p)) pick = p; - stmp = pick->p_stat == SRUN ? "running" : - pick->p_wmesg ? pick->p_wmesg : "iowait"; + stmp = pick->p_stat == SRUN ? "running" : /* XXXKSE */ + pick->p_thread.td_wmesg ? pick->p_thread.td_wmesg : "iowait"; calcru(pick, &utime, &stime, NULL); ltmp = pick->p_stat == SIDL || pick->p_stat == SWAIT || pick->p_stat == SZOMB ? 0 : @@ -2386,6 +2386,8 @@ proc_compare(p1, p2) register struct proc *p1, *p2; { + int esta, estb; + struct ksegrp *kg; mtx_assert(&sched_lock, MA_OWNED); if (p1 == NULL) return (1); @@ -2402,9 +2404,16 @@ proc_compare(p1, p2) /* * tie - favor one with highest recent cpu utilization */ - if (p2->p_estcpu > p1->p_estcpu) + esta = estb = 0; + FOREACH_KSEGRP_IN_PROC(p1,kg) { + esta += kg->kg_estcpu; + } + FOREACH_KSEGRP_IN_PROC(p2,kg) { + estb += kg->kg_estcpu; + } + if (estb > esta) return (1); - if (p1->p_estcpu > p2->p_estcpu) + if (esta > estb) return (0); return (p2->p_pid > p1->p_pid); /* tie - return highest pid */ } @@ -2420,6 +2429,7 @@ proc_compare(p1, p2) return (p2->p_pid > p1->p_pid); /* tie - return highest pid */ } +#if 0 /* XXXKSE */ /* * pick the one with the smallest sleep time */ @@ -2434,6 +2444,7 @@ proc_compare(p1, p2) return (1); if (p2->p_sflag & PS_SINTR && (p1->p_sflag & PS_SINTR) == 0) return (0); +#endif return (p2->p_pid > p1->p_pid); /* tie - return highest pid */ } |
