sysprofile
The sysprofile table contains profile information
about the database server.
Column | Type | Description |
---|---|---|
name | char(13) | Name of profiled event. (See table that follows for a list of possible events.) |
value | integer | Value of profiled event. (See table that follows for a list of possible events.) |
The following table lists the events that, together with
a corresponding value, make up the rows of the sysprofile table.
Events Profiled in sysprofile | Description |
---|---|
dskreads | Number of actual reads from disk |
bufreads | Number of reads from shared memory |
dskwrites | Actual number of writes to disk |
bufwrites | Number of writes to shared memory |
isamtot | Total number of calls |
isopens | isopen calls |
isstarts | isstart calls |
isreads | isread calls |
iswrites | iswrite calls |
isrewrites | isrewrite calls |
isdeletes | isdelete calls |
iscommits | iscommit calls |
isrollbacks | isrollback calls |
ovlock | Overflow lock table |
ovuser | Overflow user table |
ovtrans | Overflow transaction table |
latchwts | Latch request waits |
bufwts | Buffer waits |
lockreqs | Lock requests |
lockwts | Lock waits |
ckptwts | Checkpoint waits |
deadlks | Deadlocks |
lktouts | Deadlock time-outs |
numckpts | Number checkpoints |
plgpagewrites | Physical-log pages written |
plgwrites | Physical-log writes |
llgrecs | Logical-log records |
llgpagewrites | Logical-log writes |
llgwrites | Logical-log pages written |
pagreads | Page reads |
pagwrites | Page writes |
flushes | Buffer-pool flushes |
compress | Page compresses |
fgwrites | Foreground writes |
lruwrites | Least-recently used (LRU) writes |
chunkwrites | Writes during a checkpoint |
btradata | Read-ahead data pages read through index leaf node |
btraidx | Read-ahead data pages read through index branch or root node |
dpra | Data pages read into memory with read-ahead feature |
rapgs_used | Read-ahead data pages that user used |
seqscans | Sequential scans |
totalsorts | Total sorts |
memsorts | Sorts that fit in memory |
disksorts | Sorts that did not fit in memory |
maxsortspace | Maximum disk space used by a sort |