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Fix table style in ZIO Scheduler (#42)

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fix #39
This commit is contained in:
George Melikov
2020-07-29 23:01:01 +03:00
committed by GitHub
parent 4257a8a364
commit 76a1733a63
1 changed files with 13 additions and 18 deletions
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31
docs/Performance and Tuning/ZIO Scheduler.rst
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@@ -30,24 +30,19 @@ the per-queue maximums exceeds the aggregate maximum, then the number of
active I/Os may reach zfs_vdev_max_active, in which case no further I/Os active I/Os may reach zfs_vdev_max_active, in which case no further I/Os
are issued regardless of whether all per-queue minimums have been met. are issued regardless of whether all per-queue minimums have been met.
+-------------+--------------------------+--------------------------+ +-------------+------------------------------------+------------------------------------+
| I/O Class | Min Active Parameter | Max Active Parameter | | I/O Class | Min Active Parameter | Max Active Parameter |
+=============+==========================+==========================+ +=============+====================================+====================================+
| sync read | zfs_v | zfs_v | | sync read | ``zfs_vdev_sync_read_min_active`` | ``zfs_vdev_sync_read_max_active`` |
| | dev_sync_read_min_active | dev_sync_read_max_active | +-------------+------------------------------------+------------------------------------+
+-------------+--------------------------+--------------------------+ | sync write | ``zfs_vdev_sync_write_min_active`` | ``zfs_vdev_sync_write_max_active`` |
| sync write | zfs_vd | zfs_vd | +-------------+------------------------------------+------------------------------------+
| | ev_sync_write_min_active | ev_sync_write_max_active | | async read | ``zfs_vdev_async_read_min_active`` | ``zfs_vdev_async_read_max_active`` |
+-------------+--------------------------+--------------------------+ +-------------+------------------------------------+------------------------------------+
| async read | zfs_vd | zfs_vd | | async write | ``zfs_vdev_async_write_min_active``| ``zfs_vdev_async_write_max_active``|
| | ev_async_read_min_active | ev_async_read_max_active | +-------------+------------------------------------+------------------------------------+
+-------------+--------------------------+--------------------------+ | scrub read | ``zfs_vdev_scrub_min_active`` | ``zfs_vdev_scrub_max_active`` |
| async write | zfs_vde | zfs_vde | +-------------+------------------------------------+------------------------------------+
| | v_async_write_min_active | v_async_write_max_active |
+-------------+--------------------------+--------------------------+
| scrub read | z | z |
| | fs_vdev_scrub_min_active | fs_vdev_scrub_max_active |
+-------------+--------------------------+--------------------------+
For many physical devices, throughput increases with the number of For many physical devices, throughput increases with the number of
concurrent operations, but latency typically suffers. Further, physical concurrent operations, but latency typically suffers. Further, physical