HP 3000 Manuals HP 3000 Manuals
Process Screen If you select a specific process (using the #, P, or > commands), the Process screen appears containing information about that process. The Banner Line includes the PIN number and job or session number for the process as part of the screen identifier. The detailed data area of the display is divided into five parts: * Process Bars. * Process Summary Fields. * Process States. * Miscellaneous Process Information. * Process Screen Function Keys.Figure 5-5. Process Screen Process Bars The Process Bars show how the selected process is using CPU and disc resources.Figure 5-6. Process Screen--Process Bars The Process bar has the following components: CPU The CPU bar shows the percentage of central processing unit time used by the process during the last interval. The codes on this bar correspond to the codes used in the Global CPU bar (see CPU Bars under "Reading the Screen Display" in chapter 3). The number at the right of the bar is the percentage of time the CPU is busy (not counting idle time or paused-for-disc time). [Scale: 0% to 100% of total time busy.] An asterisk (*) represents the average usage of this resource over time--since the program started or since the last Z ("zero") command. DISC The Disc bar shows the disc transfer rate (transfers per second) by the process during the current interval. The codes on this bar correspond to the codes used in the Global Disc bar (see Disc Bars under "Reading the Screen Display" in chapter 3). [Scale: 0 to 100 disc transfers per second.] An asterisk (*) represents the average usage of this resource over time--since the program started or since the last Z ("zero") command. Process Summary Fields The Process Summary Fields at the right of the screen provide additional information about the process.Figure 5-7. Process Screen--Process Summary Fields The Process Summary Fields are as follows: PROGRAM TYPE The type of program is displayed as NMPRG (native mode), CMPRG (compatibility mode or PROG code in LISTF), or OCTed (one or more SOMs have been run through the Object Code Translator). PROGRAM The fully qualified program name is displayed as FILE.GROUP.ACCOUNT. ELAPSED ELAPSED shows the total clock time that the process has been running. CPU-TOT CPU-TOT shows the total amount of processor time used during the life of the process. DISC-TOT DISC-TOT shows the total number of physical disc transfers completed during the life of the process. A number followed by the letter K represents thousands of transfers; a number followed by the letter M represents millions of transfers.
NOTE Disc totals are not collected until either HP GlancePlus or another performance tool enables the MPE measurement facility to collect process data. This means that the DISC-TOT value will not include physical transfers that were completed by a process before the MPE measurement facility was enabled.
Process State Bars The bars show the process's states during its lifetime and the last interval.Figure 5-8. Process Screen--Process State Bars STATE (Components of Response Time). The STATE or Elapsed Time Process State bar shows the components of response time for the process over its lifetime (running time). The number at the right represents what percentage of the total time the process requested service (it was not waiting on terminal reads). Usually, this number will be 100% for a batch job since batch jobs typically do not interact with a terminal. For interactive processes, however, this number is typically well below 100%, and is a good indicator of how much of the time the process is requesting service from the computer. The components of the State bar are shown below. For each component listed, the process state was as follows: C Using the CPU. M Waiting for memory resources. D Blocked, waiting for a disc I/O transfer. I Blocked, waiting for a non-disc I/O transfer (this includes waiting for terminal writes but not terminals reads. Remember, the State bar represents the portion of time the process is asking for service). Q Impeded by a synchronizing mechanism including the following wait reasons: DBMS, RIN, SEM, SIR, and IMPEDE wait times. P Preempted, waiting for the CPU. F Waiting on a process in the family tree including the following wait reasons: father, son, and message wait times. O Waiting for some other reason. Wait reasons in this category include: TIMER, PORT, JUNK, MAIL, CONSOLE, PAUSE, TERMINAL, MISCELLANEOUS, and BREAK wait times. LAST (Components of Response Time). The LAST or Last Interval Process State bar represents components of response time for the process over the last interval. The number at the right represents the percentage of time the process was asking for service (not waiting for input from a terminal) during the most recent time interval. The codes for the Last bar are similar to those for the State bar except they only represent the time for the last interval. A comparison of the LAST bar to the STATE bar shows if the last interval was typical relative to the life of the process. Miscellaneous Process Information Below the State and Last Interval bars the screen shows additional information for the process being monitored.Figure 5-9. Process Screen--Miscellaneous Process Information Additional information includes the following: Wait Upon first entering the Process screen, this field indicates why a process is currently waiting (if the process is active, it will be blank). For every succeeding interval, it shows both the percentage and wait reason for the highest percentage wait reason during that interval. While the STATE and LAST bars group wait reasons for better representation, the Wait field uses the detailed reasons in appendix C to increase its ability to pinpoint a process slowdown. Queue Priority This field shows the execution queue (where: A=AS; B=BS; C=CS; D=DS; E=ES) and the absolute priority number (1-255) for the process at the time it was displayed. The priority will display a zero if the process has just terminated. Table 5-1. (cont.) Scheduling State This field shows the state this process is in according to the MPE/iX Dispatcher. Valid states are: Executing, Ready, Short Wait, Long Wait, and Null. Executing The process is using the CPU. Ready The process is waiting its turn for the CPU. Short Wait The process is waiting for disc I/O, such as a code page fault or file page fault. Long Wait The process is waiting for other I/O activities such as a terminal read or terminal write. SIR, RIN, Parent Wait, and other semaphore - type waits fall under this category. Null Appears only if a process is being created or is dying. Transactions/min This field shows the rate of terminal transactions (transactions per minute) completed during the last interval. Compatibility Mode This field shows the percentage of CPU time the process spent in Compatibility Mode during the last interval. Native Mode Switches This field shows the rate of Native Mode switches completed (switches per second from Native Mode to Compatibility Mode) during the last interval. [Bar Scale: 0 to 200 switches per second. The number to the right of the bar shows the actual switch rate per second up to a maximum of 9,999.] Comp. Mode Switches This field shows the rate of Compatibility Mode switches completed (switches per second from Compatibility Mode to Native Mode) during the last interval. [Bar Scale: 0 to 200 switches per second. The number to the right of the bar shows the actual switch rate per second up to a maximum of 9,999.] Response Time This field shows the average response time for the process during the last interval. If no terminal transactions were completed, the response time value is zero. [Scale: 0.00 to 60.00 seconds.] Process Screen Function Keys When you display the Process screen, the softkeys at the bottom of the screen change to functions related to the process being viewed. By pressing these softkeys you can display the information described below. If you choose not to use softkeys, you can access GlancePlus functions using the subcommands described with the specific functions.Figure 5-10. Process Screen--Screen Function Keys Setting Option Values (V) The process-specific functions can be customized using the V command to set the following configuration parameters: * File (Simple or Detailed) This option controls the information displayed for open files. See the Display Files option below for more information. * Prockeys (Demand or Continuous) This option controls how information on the three process-specific functions (Display Files, Display Family, and Display Trace) are displayed. * Demand When Demand is selected, the functions are treated as requests to display the appropriate information once. For example, if Prockeys=Demand and the Display Files function is selected from the Process screen, the open file information is displayed once, but will not be redisplayed when the screen is refreshed. * Continuous When Continuous is selected, the functions are treated as switches enabling or disabling the continuous display of information. For example, if Prockeys=Continuous and the Display Files function key is selected from the Process screen, the open file information is displayed, and redisplayed automatically each time the screen is refreshed. When a continuous-mode display is enabled, the Process State bars and Miscellaneous Process Information sections of the detail display are suppressed to leave more room for the display just enabled. When that display is disabled, the Process State bars and Miscellaneous Process Information are again included in the detail display.
Hint If you wish to see successive displays on the monitor for comparison, set Prockeys = Demand, and press the Display Files function key at the prompt Press RETURN to continue (or enter a GLANCE command):. This is useful particularly for tracking the progress of the file pointer in the file display. It has the additional benefit of not updating the rest of the process information; this can be very handy over a slow data communications link.
Display Files Press the Display Files function key to see a list of open files for the process being viewed. To display this data without using the function keys, press "1". (The "1" subcommand is only valid during the Process screen display.) The Display Files function appears in two formats depending on how the File parameter is configured: File=simple or File=detailed. This parameter is set using the Set Option Values (V) command. The following formats occur: Simple File Display. If the File parameter is configured File=simple, the Simple File Display format occurs, where: Filename The file name comprised of the first eight characters of the formal designator for the file. xxx% This field, following the file name, indicates the progress of the record pointer as compared with the end-of-file pointer. A sample display might be: DB01 /32% DB02 /45% Detailed File Display. If the File parameter is configured File=detailed, the Detailed File Display format occurs, as shown in figure 5-11.Figure 5-11. File Display Screen--Detailed Display where: File.Group.Account is the formal designator for the file. and File The file name or, if unnamed, a question mark (?). Group The group name or, if unnamed, a series of dots (........). Account The account name or, if unnamed, a series of dots (........). Type File code mnemonic (as in LISTF,1 command) or File code number (user-defined file code) or One of the following specially defined mnemonics: RXRAW LaserRX raw log file (file code 1135). RXEXT LaserRX extracted log file (file code 1136). ROOT TurboIMAGE data base root file (file code -400). DSET TurboIMAGE data base data set (file code -401). DBREM TurboIMAGE remote data base (file code -402). DBILR TurboIMAGE ILR file (file code -404). PRIV Any other negative file code. or if the file code is zero: KSAM Foptions file type = 1 RIO Foptions file type = 2 KSAMX Foptions file type = 3 CIR Foptions file type = 4 SPOOL Foptions file type = 5 MSG Foptions file type = 6 Rec-Pointer The current record pointer for the file. (This usually points to the last record accessed by the process.) End-of-File The current end-of-file value (disc files only). Domain The designation of the file's condition. It may be: NEW File is newly created, Foptions Domain = 0. PERM File is permanent, Foptions Domain = 1. TERM File is temporary, Foptions Domain = 2. OLD File is old permanent or temporary, Foptions Domain = 3. If the file is a system-defined file, the Domain lists one of the following designations: $stdlist System-defined file, Foptions designator = 1. $newpass System-defined file, Foptions designator = 2. $oldpass System-defined file, Foptions designator = 3. $stdin System-defined file, Foptions designator = 4. $stdinx System-defined file, Foptions designator = 5. $null System-defined file, Foptions designator = 6. ???????? System-defined file, Foptions designator = 7. Access The way a file is opened by the process--the type of access, as follows: IN File is opened for READ access, Aoptions Access = 0. OUT File is opened for WRITE access, Aoptions Access = 1. KEEP File is opened for WRITE-SAVE access, Aoptions Access = 2. APEN File is opened for APPEND access, Aoptions Access = 3. I/O File is opened for READ/WRITE access, Aoptions Access = 4. UPDT File is opened for UPDATE access, Aoptions Access = 5. XEQ File is opened for EXECUTE access, Aoptions Access = 6. LOAD File is opened for EXECUTE-READ, Aoptions Access = 7. M File is opened for MAPPED-FILE access Share The way the file is shared by this process: EXC File is open for EXCLUSIVE access, Aoptions Excl = 1. SEM File is open for READ-SHARE (SEMI EXCLUSIVE) access, Aoptions Excl = 2. SHR File is open for SHARE access, Aoptions Excl = 3. ,L File is open with Dynamic Locking, Aoptions Lock = 1. Table 5-1. (cont.) Opens The number of times the file has been opened. TurboIMAGE data sets will have their record pointers and end of files expressed as TurboIMAGE record numbers instead of MPE file blocks of media records. See the MPE Intrinsics Manual under the FOPEN intrinsic for a detailed description of Foptions and Aoptions parameters. Display Family Press the Display Family function key to see the family tree for the process currently being viewed. To display the tree without using the function keys, press 2. (The "2" subcommand is valid only during the Process screen display.) If available, the parent process identification number (PIN) is shown, followed by any and all children of the process. For each PIN displayed, the program being executed by the respective process is also presented. Display Trace Pressing the Display Trace function key provides an HP Debug Procedure trace of the process being monitored. To display the trace without using the function keys, press 3. (The "3" subcommand is valid only during the Process screen display.) The first time you use the Display Trace key, a 5- to 30-second delay occurs. This is normal. Note, however, that a user will not be able to execute this command without System Manager (SM) capability. Consult the MPE XL System Debug Reference Manual for detailed information on how to read a trace. SPT Collect This function key allows you to use the HP SPT (Software Performance Tuner) product to create and run a program under HP GlancePlus for collecting metrics on the process currently running. To display this process without using function keys, press 4. (The "4" subcommand is valid only during the Process screen display.) This command is optional and will operate only if the HP SPT product was installed. The data SPT collects about a process is placed in the default log file SPTLOG. The default time for collecting process metrics via SPT is 5 minutes, but can be changed by using the job control word GLANCESPTTIME. Collection times between 1 and 60 minutes can be selected when using SPT from within GlancePlus. The file SPTOUT is used for STDLIST messages created from the SPT process running under HP GlancePlus. If desired, you can terminate a SPT process created by GlancePlus, by using the MPE command (:) and issuing the command SETVAR SPT_STOP TRUE. The existence of the SPT_STOP variable will cause the SPT process to terminate in 15 to 30 seconds. After creating and activating the SPT program, GlancePlus resumes normal operation and its screens can be accessed.
NOTE HP GlancePlus limits SPT data collection to one active process at a time.
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