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SSJE Performance Monitor Metrics
 

Server-Level Performance Metrics

isAlive Checks if the connection to the server instance can be established
user_cpu Total user CPU time used by all user threads expressed in seconds
system_cpu Total system CPU time used by all user threads expressed in seconds
perc_phys_log_used Percentage of used physical log
user_session_count Number of users connected to the server
buffer_wait_ratio Buffer wait ratio (buffwts/(pagreads+bufwrites))*100
bufreads_writes_ratio Buffered reads to buffered writes ratio (bufreads/bufwrites)
rollback_commits_ratio Rollback to commit ratio (isrollbacks/iscommits)
isam_seqscan_ratio ISAM total to sequential scan ration (isamtot/seqscans/)
perc_cached_read Read cache percentage (100*(bufreads-dskreads)/bufreads)
perc_cached_write Write cache percentage (100*(bufwrites-dskwrites)/dskwrites)
dskreads Number of actual reads from disk
pagreads Number of pages read
bufreads Number of reads from shared memory
dskwrites Number of actual physical writes to disk. It includes the writes for the physical and logical logs.
pagwrites Number of pages written.
bufwrites Number of writes to the shared memory buffers
isamtot Total number of ISAM calls made
isopens Number of times a tablespace is opened
isstarts Number of times an index position was changed
isreads Number of times the ISAM read function is called
iswrites Number of times the ISAM write function is called
isrewrites Number of times the ISAM update function is called
isdeletes Number of times the ISAM delete function is called
iscommits Number of times the ISAM iscommit() function was called
isrollbacks Number of times transactions rolled back
ovlock Number of times the database server attempted to exceed the maximum number of locks (specified as LOCKS in the ONCONFIG file)
ovuser Number of times that a user attempted to exceed the maximum number of user threads
ovtrans Overflow transaction table
latchwts Increments when a thread waits to gain access to a shared-memory resource
buffwts Number of times user threads have to wait for a buffer
lockreqs Number of total requests for locks
lockwts Number of times user threads wait to aquire a lock
lktouts Number of deadlock timeouts
deadlks Number of times that deadlocks were detected and cured
ckptwts Number of times checkpoint waits
chunkwrites Writes during a checkpoint
plgpagewrites Physical-log pages written
plgwrites Physical-log writes
llgrecs Logical-log records
llgpagewrites Logical-log pages written
llgwrites Logical-log writes
flushes Number of times that the buffer pool has been flushed to the disk
compress Number of pages compressions
seqscans Number of sequential scans executed
totalsorts Total number of sorts
memsorts Number of memory sorts (sorts that fit in memory)
disksorts Number of disk sorts (sorts that did not fit in memory)
maxsortspace Maximum disk space used by a sort
lruwrites Least-recently used (LRU) writes
btradata Data pages read ahead though leaf
btraidx Leaf read ahead though leaf
dpra Data-page read aheads
rapgs_used Read-ahead pages used

Table\Index-Level Performance Metrics

tb_exts_count Number of table extents
tb_pgsize Table size (in pages)
tb_reads Number of read function calls
tb_writes Number of write function calls
tb_bufreads Number of buffer reads
tb_bufwrites Number of buffer writes
tb_pgwrites Number of page writes
tb_pgreads Number of page reads
tb_wtlock Number of lock waits
tb_lockrq Number of lock requests
tb_deadlocks Number of deadlocks

Space-Level Performance Metrics

sp_used_page_size Number of used pages in the space
sp_perc_used Percent of the space used

Chunk-Level Performance Metrics

ch_perc_free Percent of the chunk free
ch_reads Number of physical reads
ch_writes Number of physical writes
ch_pageswritten Number of page writes
ch_pagesread Number of page reads
ch_free_pages Number of free pages in the chunk

User Session-Level Performance Metrics

sqs_reads Number of the ISAM read function calls
sqs_writes Number of ISAM write function calls
sqs_buffwrts Number of buffer writes
sqs_buffrds Number of buffer reads
sqs_pagerds Number of page reads
sqs_pgwrts Number of page writes
sqs_rewrts Number of rewrites
sqs_scans Number of sequential scans
sqs_longtran Number of long transactions for the session
sqs_rollback Number of rollbacks
sqs_sorts Number of total sorts
sqs_disksorts Number of disk sorts
sqs_max_sort_space Maximum space used by a sort
sqs_max_log_space Maximum number of bytes of logical-log space ever used by the session
sqs_crt_log_space Number of bytes of logical-log space used by current transaction of the session
sqs_log_recs Number of logical-log records written by the session
sqs_lckreq Number of locks requested by the session
sqs_lock_held Number of locks currently held by the session
sqs_dead_locks Number of deadlocks detected at the session
sqs_dels Number of deletes
sqs_lock_waits Number of times waited for a lock
sqs_ovlock Number of times a session ran out of locks
sqs_commits Number of commits

SQL Capture

SQL SQL statement executed by user session
user User login name
host Host where the statement was executed from
session_id IDS Session ID of the user session
database Database, in which the statement was executed
seqscans Number of sequential scans during the statement execution
est_cost Estimated cost of SQL statement
est_rows Estimated number of rows affected by SQL statement
autoindex Number of auto indexes created during the execution
tempfiles Number of temporary files accessed during execution
errorcode SQL Error Code in case of the execution error

 

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