| performance_counter {mysql} |
R Documentation |
run the mysql performance counter in a given timespan perioid.
Description
Usage
performance_counter(mysql, task,
resolution = 1);
Arguments
mysql
mysql connection parameters for create a
mysql performance counter @T:Oracle.LinuxCompatibility.LibMySQL.PerformanceCounter.Logger object.
task
the timespan value for run current performance counter task, value could be generates
from the time related R# base function:
hours, minutes, seconds, days, time_span. [as TimeSpan]
resolution
the mysql performance counter data sampling time resolution value,
time internal data unit in seconds. [as double]
env
[as Environment]
Details
Authors
graphR
Value
the return tuple list data has attribute data global_status, is the raw data
for the performance counter which is pulled from the mysql server.
the list data also has some specificied data fields:
list(Bytes_received, Bytes_sent, Selects, Inserts, Deletes, Updates, Client_connections, Innodb_buffer_pool_read_requests, Innodb_buffer_pool_write_requests, Innodb_data_read, timestamp).
clr value class
Examples
[Package
mysql version 1.0.0.0
Index]