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block: include flush requests in info blockstats 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Christoph Hellwig 2011-08-22 00:25:58 +02:00 committed by Kevin Wolf
parent f785a5ae36
commit e8045d6726
3 changed files with 20 additions and 5 deletions
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18
block.c
View File

@ -1915,11 +1915,13 @@ static void bdrv_stats_iter(QObject *data, void *opaque)
" wr_bytes=%" PRId64
" rd_operations=%" PRId64
" wr_operations=%" PRId64
" flush_operations=%" PRId64
"\n",
qdict_get_int(qdict, "rd_bytes"),
qdict_get_int(qdict, "wr_bytes"),
qdict_get_int(qdict, "rd_operations"),
qdict_get_int(qdict, "wr_operations"));
qdict_get_int(qdict, "wr_operations"),
qdict_get_int(qdict, "flush_operations"));
}
void bdrv_stats_print(Monitor *mon, const QObject *data)
@ -1937,12 +1939,16 @@ static QObject* bdrv_info_stats_bs(BlockDriverState *bs)
"'wr_bytes': %" PRId64 ","
"'rd_operations': %" PRId64 ","
"'wr_operations': %" PRId64 ","
"'wr_highest_offset': %" PRId64
"'wr_highest_offset': %" PRId64 ","
"'flush_operations': %" PRId64
"} }",
bs->rd_bytes, bs->wr_bytes,
bs->rd_ops, bs->wr_ops,
bs->rd_bytes,
bs->wr_bytes,
bs->rd_ops,
bs->wr_ops,
bs->wr_highest_sector *
(uint64_t)BDRV_SECTOR_SIZE);
(uint64_t)BDRV_SECTOR_SIZE,
bs->flush_ops);
dict = qobject_to_qdict(res);
if (*bs->device_name) {
@ -2606,6 +2612,8 @@ BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
trace_bdrv_aio_flush(bs, opaque);
bs->flush_ops++;
if (bs->open_flags & BDRV_O_NO_FLUSH) {
return bdrv_aio_noop_em(bs, cb, opaque);
}

1
block_int.h
View File

@ -188,6 +188,7 @@ struct BlockDriverState {
uint64_t wr_bytes;
uint64_t rd_ops;
uint64_t wr_ops;
uint64_t flush_ops;
uint64_t wr_highest_sector;
/* Whether the disk can expand beyond total_sectors */

6
qmp-commands.hx
View File

@ -1201,6 +1201,7 @@ Each json-object contain the following:
- "wr_bytes": bytes written (json-int)
- "rd_operations": read operations (json-int)
- "wr_operations": write operations (json-int)
- "flush_operations": cache flush operations (json-int)
- "wr_highest_offset": Highest offset of a sector written since the
BlockDriverState has been opened (json-int)
- "parent": Contains recursively the statistics of the underlying
@ -1222,6 +1223,7 @@ Example:
"wr_operations":751,
"rd_bytes":122567168,
"rd_operations":36772
"flush_operations":61,
}
},
"stats":{
@ -1230,6 +1232,7 @@ Example:
"wr_operations":692,
"rd_bytes":122739200,
"rd_operations":36604
"flush_operations":51,
}
},
{
@ -1240,6 +1243,7 @@ Example:
"wr_operations":0,
"rd_bytes":0,
"rd_operations":0
"flush_operations":0,
}
},
{
@ -1250,6 +1254,7 @@ Example:
"wr_operations":0,
"rd_bytes":0,
"rd_operations":0
"flush_operations":0,
}
},
{
@ -1260,6 +1265,7 @@ Example:
"wr_operations":0,
"rd_bytes":0,
"rd_operations":0
"flush_operations":0,
}
}
]