User Manual

Table 77 Common Performance Columns (continued)
CommentTypeColumn
Total number of bytes read since the object was first created or
restarted
DOUBLE PRECISION
NOT NULL
rbytes
Difference between rbytes value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_rbytes
Total number of read errors since the object was first created or
restarted
DOUBLE PRECISION
NOT NULL
rerror
Difference between error value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_rerror
Total number of dropped reads since the object was first created or
restarted.
DOUBLE PRECISION
NOT NULL
rdrops
Difference between rdrops value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_rdrops
Total number of ticks (microsecs) taken by read operations since the
object was first created or restarted.
DOUBLE PRECISION
NOT NULL
rticks
Difference between rticks value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_rticks
Total number of writes since the object was first created or restartedDOUBLE PRECISION
NOT NULL
wcount
Difference between wcount value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_wcount
Total number of bytes written since the object was first created or
restarted
DOUBLE PRECISION
NOT NULL
wbytes
Difference between wbytes value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_wbytes
Total number of write errors since the object was first created or
restarted
DOUBLE PRECISION
NOT NULL
werror
Difference between werror value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_werror
Total number of dropped writes since the object was first created or
restarted
DOUBLE PRECISION
NOT NULL
wdrops
Difference between wdrops value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_wdrops
Total number of ticks (microsecs) taken by write operations since the
object was first created or restarted
DOUBLE PRECISION
NOT NULL
wticks
Difference between wticks value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_wticks
Number of reads in service time bucket number 0.DOUBLE PRECISION
NOT NULL
rhist0
Difference between rhist0 value from last sample for the same object.DOUBLE PRECISION
NOT NULL
d_rhist0
.........
Number of reads in service time bucket number 31.DOUBLE PRECISION
NOT NULL
rhist31
Difference between rhist31 value from last sample for same object.DOUBLE PRECISION
NOT NULL
d_rhist31
206 Database Schema