diff options
Diffstat (limited to 'uts/common/fs/zfs/vdev_queue.c')
| -rw-r--r-- | uts/common/fs/zfs/vdev_queue.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/uts/common/fs/zfs/vdev_queue.c b/uts/common/fs/zfs/vdev_queue.c index a806e93..61fc177 100644 --- a/uts/common/fs/zfs/vdev_queue.c +++ b/uts/common/fs/zfs/vdev_queue.c @@ -45,8 +45,11 @@ int zfs_vdev_max_pending = 10; int zfs_vdev_min_pending = 4; -/* deadline = pri + ddi_get_lbolt64() >> time_shift) */ -int zfs_vdev_time_shift = 6; +/* + * The deadlines are grouped into buckets based on zfs_vdev_time_shift: + * deadline = pri + gethrtime() >> time_shift) + */ +int zfs_vdev_time_shift = 29; /* each bucket is 0.537 seconds */ /* exponential I/O issue ramp-up rate */ int zfs_vdev_ramp_rate = 2; @@ -412,7 +415,7 @@ vdev_queue_io(zio_t *zio) mutex_enter(&vq->vq_lock); - zio->io_timestamp = ddi_get_lbolt64(); + zio->io_timestamp = gethrtime(); zio->io_deadline = (zio->io_timestamp >> zfs_vdev_time_shift) + zio->io_priority; @@ -445,8 +448,7 @@ vdev_queue_io_done(zio_t *zio) vdev_queue_pending_remove(vq, zio); - vq->vq_io_complete_ts = ddi_get_lbolt64(); - vq->vq_io_delta_ts = vq->vq_io_complete_ts - zio->io_timestamp; + vq->vq_io_complete_ts = gethrtime(); for (int i = 0; i < zfs_vdev_ramp_rate; i++) { zio_t *nio = vdev_queue_io_to_issue(vq, zfs_vdev_max_pending); |
