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Add zpool status -s (slow I/Os) and -p (parseable)

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This patch adds a new slow I/Os (-s) column to zpool status to show the
number of VDEV slow I/Os. This is the number of I/Os that didn't
complete in zio_slow_io_ms milliseconds. It also adds a new parsable
(-p) flag to display exact values.

 	NAME         STATE     READ WRITE CKSUM  SLOW
 	testpool     ONLINE       0     0     0     -
	  mirror-0   ONLINE       0     0     0     -
 	    loop0    ONLINE       0     0     0    20
 	    loop1    ONLINE       0     0     0     0

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #7756
Closes #6885
This commit is contained in:
Tony Hutter
2018-11-08 16:47:24 -08:00
committed by Brian Behlendorf
parent 877d925a9e
commit ad796b8a3b
16 changed files with 321 additions and 136 deletions
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include/sys/zio.h
+1 -6
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@@ -158,11 +158,6 @@ enum zio_encrypt {
(compress) == ZIO_COMPRESS_ON || \
(compress) == ZIO_COMPRESS_OFF)
/*
* Default Linux timeout for a sd device.
*/
#define ZIO_DELAY_MAX (30 * MILLISEC)
#define ZIO_FAILURE_MODE_WAIT 0
#define ZIO_FAILURE_MODE_CONTINUE 1
#define ZIO_FAILURE_MODE_PANIC 2
@@ -664,7 +659,7 @@ extern void zfs_ereport_finish_checksum(zio_cksum_report_t *report,
extern void zfs_ereport_free_checksum(zio_cksum_report_t *report);
/* If we have the good data in hand, this function can be used */
extern void zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd,
extern int zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd,
const zbookmark_phys_t *zb, struct zio *zio, uint64_t offset,
uint64_t length, const abd_t *good_data, const abd_t *bad_data,
struct zio_bad_cksum *info);