HP 3000 Manuals HP 3000 Manuals
Global Screen This screen summarizes activity systemwide and lists all processes that exceed the usage thresholds for the system (figure 5-1). The Global screen is the first screen to appear when you start GlancePlus, unless you have specified an INFO string in the RUN command to call up another screen (see chapter 7). This Global screen is the usual starting point for a review of system activity and performance. The information on this screen will tell you if a resource is used excessively or a process is monopolizing available resources.Figure 5-1. Global Screen Interesting Processes Only processes that you define as interesting are displayed on the Global screen. This allows you to concentrate on processes most likely to affect performance. A process can be interesting if it exceeds a user-defined threshold value, it was just created, or it was terminated during the last interval. Interesting processes are scrolled down as new entries are added. This keeps the latest information at the top of the list below the Global bars. You can scroll the terminal display to examine previous processes and intervals again. A blank line separates each group of process information from the group that was displayed during the previous time interval.Figure 5-2. Global Screen--Interesting Processes Some interesting processes will have highlighted fields to indicate an event that might require closer attention. These appear in a different color or are underlined on your screen, depending on the type of monitor (see figure 5-2 for examples of highlighted processes). You can use the Set Option Values (V) command to change the threshold values of events to cause a process to become interesting or have one of its fields highlighted. You can also change the threshold values before entering GlancePlus by setting the appropriate job control words (JCWs). See chapter 7 for more information on customizing GlancePlus. Interesting Process Components Each interesting process occupies a single line on the Global screen. The components of interesting processes and any applicable reasons for highlighting are as follows: JSNO JSNO is the job number (#Jnnnn), session number (#Snnnn) or process identification number (#Pnnn) for the process. DEV DEV is the logical device number for a job or session. If the job or session is a system process, DEV is displayed as SYS. LOGON LOGON is the first 22 characters of the logon string (jobsessionname,user.account). PIN PIN is the process identification number for the process. PROGRAM PROGRAM refers to the name of the program being run. If the program is the MPE/iX Command Interpreter (CI), then this field displays a colon (:) followed by the first characters of the last CI command issued. However, depending on your assigned capabilities, the following might apply: * SM (System Manager) capability will show the last CI command for all users systemwide. * AM (Account Manager) capability will show the last CI command for all users within that account. * A user with neither SM nor AM capabilities will be shown only his or her last CI command. All other Command Interpreters will show CI as the program name. The program name of a new process is highlighted, and an asterisk (*) is located between the PIN and PROGRAM columns. A terminating process is represented by the word DIED, highlighted in the priority (PRI) field. PRI PRI is the execution queue (where: A=AS, B=BS, C=CS, D=DS, E=ES) followed by the current execution priority number of the process (1-255). If a process has just terminated, this field will contain the word DIED. Table 5-0. (cont.) CPU% CPU% is the percentage of the central processing unit used by this process during the last interval. The CPU field is highlighted if the process exceeds the CPU threshold. The default is 10 percent of the CPU. DISC DISC is the disc transfer rate (transfers per second) for this process during the last interval. The DISC field is highlighted if the process exceeds the disc transfer threshold. The default is 10 disc transfers per second. TRN TRN is the rate per minute at which the Return or Enter key was pressed during the last interval. Transactions with think times less than 0. 2 second are not counted since they probably represent hardware status replies. The number of transactions is 0 for most batch jobs because generally they do not read from terminals. The TRN field is highlighted if the process exceeds the terminal transaction threshold. The default is 10 transactions per minute. RESP RESP is the average time from when the Return or Enter key is pressed until the computer is ready to accept more input. This includes the time for the process to do all the work requested by the user, write out all the characters in response to the request, and issue the next read to the terminal. This number is 0.0 if there were no transactions during the last interval. The RESP field is highlighted if the response time exceeds the response time threshold. The default is 5.0 seconds. WAIT WAIT is the reason a process was waiting at the end of the last interval. For a list of WAIT reasons, see table 5-1 and appendix B, "Wait Reasons--Expanded Definitions." Table 5-1. Wait Reasons ----------------------------------------------------------------- | | | | Wait | Definition | | | | ----------------------------------------------------------------- | | | | BREK | Waiting to be resumed from a program BREAK. | | | | ----------------------------------------------------------------- | | | | CONS | Waiting for reply to a console request. | | | | ----------------------------------------------------------------- | | | | CPU | Waiting for CPU resources. | | | | ----------------------------------------------------------------- | | | | DBMS | Waiting for SQL monitor. | | | | ----------------------------------------------------------------- | | | | DISC | Waiting for disc I/O. | | | | ----------------------------------------------------------------- | | | | FATH | Waiting for father. | | | | ----------------------------------------------------------------- | | | | IMP | Waiting impeded. | | | | ----------------------------------------------------------------- | | | | I/O | Waiting for nondisc, nonterminal read I/O. | | | | ----------------------------------------------------------------- | | | | MEM | Waiting for memory swap. | | | | ----------------------------------------------------------------- | | | | MISC | Waiting for miscellaneous reason. | | | | ----------------------------------------------------------------- | | | | MSG | Waiting for user or system message. | | | | ----------------------------------------------------------------- | | | | OTHR | Waiting for other unknown reasons. | | | | ----------------------------------------------------------------- | | | | PAUS | Waiting for requested time period to expire. | | | | ----------------------------------------------------------------- | | | | RIN | Waiting for shared resource, such as a file lock. | | | | ----------------------------------------------------------------- | | | | SEM | Waiting for software semaphore. | | | | ----------------------------------------------------------------- | | | | SIR | Waiting for critical system resource. | | | | ----------------------------------------------------------------- | | | | SON | Waiting for son. | | | | ----------------------------------------------------------------- | | | | TERM | Waiting for terminal read to complete. | | | | -----------------------------------------------------------------
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