diff options
Diffstat (limited to 'usr/src/uts/common/disp/sysdc.c')
| -rw-r--r-- | usr/src/uts/common/disp/sysdc.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/usr/src/uts/common/disp/sysdc.c b/usr/src/uts/common/disp/sysdc.c index a8d7158124..9b91aca456 100644 --- a/usr/src/uts/common/disp/sysdc.c +++ b/usr/src/uts/common/disp/sysdc.c @@ -115,8 +115,8 @@ * SDC class. t must have an associated LWP (created by calling * lwp_kernel_create()). The thread will have a target DC of dc. * Flags should be either 0 or SYSDC_THREAD_BATCH. If - * SYSDC_THREAD_BATCH is specified, the thread will run with a - * slightly lower priority (see "Batch threads", below). + * SYSDC_THREAD_BATCH is specified, the thread is expected to be + * doing large amounts of processing. * * * Complications @@ -190,10 +190,8 @@ * - Batch threads * * A thread joining the SDC class can specify the SDC_THREAD_BATCH - * flag. This flag causes the maximum priority for that thread to be - * reduced (by default, the maximum is reduced by 1). This allows - * longer-running, batch-oriented SDC threads to be interrupted by - * more immediate, higher-priority work. + * flag. This flag currently has no effect, but marks threads which + * do bulk processing. * * - t_kpri_req * @@ -235,10 +233,6 @@ * * Tunables * - * - sysdc_batch_niceness: The amount below sysdc_maxpri that - * SDC_THREAD_BATCH threads should use as their per-thread - * maximum priority. - * * - sysdc_update_interval_msec: Number of milliseconds between * consecutive thread priority updates. * @@ -322,7 +316,6 @@ uint_t sysdc_reset_interval_msec = 400; uint_t sysdc_prune_interval_msec = 100; uint_t sysdc_max_pset_DC = 90; uint_t sysdc_break_msec = 80; -pri_t sysdc_batch_niceness = 1; /* * Internal state - constants set up by sysdc_initparam() @@ -1314,9 +1307,6 @@ sysdc_thread_enter(kthread_t *t, uint_t dc, uint_t flags) sdp.sdp_maxpri = sysdc_maxpri; sdp.sdp_DC = MAX(MIN(dc, sysdc_maxDC), sysdc_minDC); - if (flags & SYSDC_THREAD_BATCH) - sdp.sdp_maxpri -= sysdc_batch_niceness; - VERIFY3U(CL_ALLOC(&buf, sysdccid, KM_SLEEP), ==, 0); ASSERT(t->t_lwp != NULL); |