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Scheduled task slow speed

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  • Scheduled task slow speed

    I run a number of maintenance tasks overnight. This is the first time I have had a slow speed issue.

    This job should run about 1 hour. If I start it from the database script or from a .bat file that runs the script, the run time is consistently about an hour. However, if the bat file is run as a scheduled task, then mostly it will take 3-8 hours. With no other users in the system I can run the bat file in 1 hour and then fire off the bat file from the scheduled task window and it takes 5 hours.

    I have set the task to run
    F:\Data\scheduled_sumtables.bat
    and
    C:\Windows\System32\cmd.exe /C F:\Data\scheduled_sumtables.bat

    with similar long results.

    Just today I noticed in Windows task manager that the scheduled task has allocated les RAM than when I run directly from the bat file. Of course the RAM allocated is dynamic so maybe I am just seeing it when it is low, but at 10 MB it is significantly below the ~ 70 MB when the bat is run directly.

    The recent thread mentioning powershell gives me the idea to try that, but any other thoughts on what might make a scheduled task run slower?

    Bill.

  • #2
    Re: Scheduled task slow speed

    What OpSys version Bill?
    Ted Giles
    Example Consulting - UK
    .

    sigpichttp://ec12.example-software.com//
    See our site for Alpha Support, Conversion and Upgrade.

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    • #3
      Re: Scheduled task slow speed

      If it's Win10, most likely the update process is hogging the resources.
      Ted Giles
      Example Consulting - UK
      .

      sigpichttp://ec12.example-software.com//
      See our site for Alpha Support, Conversion and Upgrade.

      Comment


      • #4
        Re: Scheduled task slow speed

        The scheduled task is running on Server 2008 R2.

        The slowness is in summarize operations, e.g. summarize.run_silent("my operation", vFilter) As each operation runs I can watch the file update time in Windows explorer. These operations are taking 30-60 minutes when it is more logical for them to be just a few minutes.

        Bill.

        Comment


        • #5
          Re: Scheduled task slow speed

          Could then be a corrupt index, I presume you rebuild regularly.
          Or a corrupt record.
          Ted Giles
          Example Consulting - UK
          .

          sigpichttp://ec12.example-software.com//
          See our site for Alpha Support, Conversion and Upgrade.

          Comment


          • #6
            Re: Scheduled task slow speed

            Bill

            Pretty strange.

            Does task scheduler run as a different user?

            Are some tables open by other processes when the scheduled task runs.
            Al Buchholz
            Bookwood Systems, LTD
            Weekly QReportBuilder Webinars Thursday 1 pm CST

            Occam's Razor - KISS
            Normalize till it hurts - De-normalize till it works.
            Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
            When we triage a problem it is much easier to read sample systems than to read a mind.

            Comment


            • #7
              Re: Scheduled task slow speed

              Ted,

              Indexes rebuild just before this task. and in one test I ran it manually in an hour, then ran it again through the task - taking 5 hours.

              Hi Al, same user is defined for the task. No other users should be active, and confirmed none were active during these tests. I am going to see some powershell guys this weekend, so I'll have me set that up. Meantime I will get better stats on RAM and cpu usage for tonight's run.

              Bill.

              Comment


              • #8
                Re: Scheduled task slow speed

                If these are Alpha routines, can you run them from a script? I'm thinking that an OnDatabaseClose routine might help - then you could use the task scheduler to just close Alpha...and then Alpha would control the process.
                Robin

                Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                Comment


                • #9
                  Re: Scheduled task slow speed

                  Originally posted by MoGrace View Post
                  If these are Alpha routines, can you run them from a script? I'm thinking that an OnDatabaseClose routine might help - then you could use the task scheduler to just close Alpha...and then Alpha would control the process.
                  The way I prefer is to create an Alpha generated shortcut that you put in xbasic to run when task scheduler runs.
                  navigate - desktop control panel - tools - create shortcut
                  You get a <your-named>.startup file that contains the xbasic code that is run.

                  The command line and start in of the shortcut gives the startup that task scheduler needs.

                  I use all functions that call functions within this routine rather than scripts to get the tightest control possible.

                  the last call is to a5.close()
                  Al Buchholz
                  Bookwood Systems, LTD
                  Weekly QReportBuilder Webinars Thursday 1 pm CST

                  Occam's Razor - KISS
                  Normalize till it hurts - De-normalize till it works.
                  Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
                  When we triage a problem it is much easier to read sample systems than to read a mind.

                  Comment


                  • #10
                    Re: Scheduled task slow speed

                    My method is similar to Al's, but I use the startup command's ability to close Alpha. So the bat file looks like this
                    Code:
                    "C:\Program Files (x86)\a5v11 Runtime\alpha5.exe" "F:\Data\Utilities\sumtables.adb" -INCLUDE="scheduled_sumtables.startup"
                    and the startup file looks like this
                    Code:
                    -TITLE="Windows scheduled task - Sumtables U1"
                    -NOSPLASH
                    -ExecuteAndExit
                    -COMMAND="script_play(\"rpt_sumtables\")"
                    The script just calls a function of the same name. Al, you are saying you do -COMMAND="rpt_sumtables()"? I would prefer that, but it sticks in my mind that was not possible in the early days and I have just stuck with the same pattern.

                    Bill.

                    Comment


                    • #11
                      Re: Scheduled task slow speed

                      Originally posted by Bill Parker View Post
                      The script just calls a function of the same name. Al, you are saying you do -COMMAND="rpt_sumtables()"?
                      Bill.
                      Yes

                      Is the -ExecuteAndExit option a newer one? I don't recall that one. Must be CRS.
                      Al Buchholz
                      Bookwood Systems, LTD
                      Weekly QReportBuilder Webinars Thursday 1 pm CST

                      Occam's Razor - KISS
                      Normalize till it hurts - De-normalize till it works.
                      Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
                      When we triage a problem it is much easier to read sample systems than to read a mind.

                      Comment


                      • #12
                        Re: Scheduled task slow speed

                        Now that you ask... I "know" that I found it in the runtimedocumentation.pdf, but I don't see it there in recent versions. Maybe I saw it somewhere else. Don't you just love the serendipity of Alpha's documentation!

                        Bill.

                        Comment


                        • #13
                          Re: Scheduled task slow speed

                          Hi
                          Originally posted by Bill Parker View Post
                          Now that you ask... I "know" that I found it in the runtimedocumentation.pdf, but I don't see it there in recent versions. Maybe I saw it somewhere else. Don't you just love the serendipity of Alpha's documentation!

                          Bill.
                          No doubt.
                          Al Buchholz
                          Bookwood Systems, LTD
                          Weekly QReportBuilder Webinars Thursday 1 pm CST

                          Occam's Razor - KISS
                          Normalize till it hurts - De-normalize till it works.
                          Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
                          When we triage a problem it is much easier to read sample systems than to read a mind.

                          Comment


                          • #14
                            Re: Scheduled task slow speed

                            Found it. Do a full text search in v11 help for "executeandexit".

                            Comment


                            • #15
                              Re: Scheduled task slow speed

                              I found it in the Wiki Starting Alpha Anywhere With Command Line Options

                              Another thought...
                              If your F: path is a mapped drive to the server, maybe using the fully qualified '\\servername\datapath\batchfile' format would work better?
                              Last edited by MoGrace; 12-14-2016, 05:42 PM.
                              Robin

                              Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                              Comment

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