Sql Oracle Elapsed Time Vs Cpu Time Stack Overflow If the elapse time for the query is 10 and cpu time is 4 then the query took 4 seconds to execute on cpu and rest of the time (6 seconds) spent on non idle wait. Elapsed time is the total time the query takes*. this includes the cpu time waits (i o, network, etc.). the elapsed time for a given execution should match the duration provided by sql monitor. this is what you should pay most attention to. so this could be higher than the wall clock time for the query. is this answer out of date?.
Sql Oracle Elapsed Time Vs Cpu Time Stack Overflow I have read threads here and here and i get that elapsed time is the total duration of the task and if the elapsed time is less than cpu time, the query went parallel. after typing that, i was trying to improve a stored procedure's performance in an area in which we are experiencing some slowness. the existing tsql: paste the plan. Elapsed time for the fetch is 552.47sec so this is the time the query actually needed. i'd like to understand where this time has been spent: cpu time is 51.16sec. wait times are around 120sec. so where is the remaining time (552 sec vs 51 120sec)?. A fetch is a call to the database to get rows. so the client called the database 7,499 times. each time it received ceil ( 112,458 7,499 ) = 15 rows. cpu is the total time in seconds the server's processors were executing that step. elapsed is the total wall clock time. this is the cpu time any extra work. such as disk reads, network time, etc. By definition, elapsed time will be less than cpu time divided by number of cores if one core has to wait and or takes more cpu time than another core. if all cores use the same cpu and have zero wait, then elapsed time will be the same as cpu time divided by number of cores.
Oracle Database Total Db Time Vs Elapsed Time Vs Cpu Time Stack A fetch is a call to the database to get rows. so the client called the database 7,499 times. each time it received ceil ( 112,458 7,499 ) = 15 rows. cpu is the total time in seconds the server's processors were executing that step. elapsed is the total wall clock time. this is the cpu time any extra work. such as disk reads, network time, etc. By definition, elapsed time will be less than cpu time divided by number of cores if one core has to wait and or takes more cpu time than another core. if all cores use the same cpu and have zero wait, then elapsed time will be the same as cpu time divided by number of cores. Elapsed time = total time required by the query. cpu time = time the processor (s) have spent on your query (the rest of the time the processor may be working on another task or sitting idol while it is waiting for an i o operation to complete).
Oracle Database Elapsed Time Of Sql Stack Overflow Elapsed time = total time required by the query. cpu time = time the processor (s) have spent on your query (the rest of the time the processor may be working on another task or sitting idol while it is waiting for an i o operation to complete).
T Sql Cpu Vs Elapsed Parallelism Database Administrators Stack
T Sql Cpu Vs Elapsed Parallelism Database Administrators Stack
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