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Vue Scripts
Scripts on this page tend to fall into three categories; working tools, simplified examples, and bug demonstrations (typically for IBM/PMR purposes). The scripts as currently presented do not differentiate between the types other than in the descriptions. Read the descriptions and code/comments carefully before using.
Contents:
| forkstat | Watches fork() and exec() calls system wide. Reports numerical stats or lists each fork/exec call. | |
| movinggraph.e | This script is similar to forkstat in that it shows exec() calls. The key difference is that it shows them in a rolling graph over a repeating interval. (This is a graph producing script, rather than a simple list of data points.) Furthermore the script is designed so that the triggering event/probe can be changed to something else (other than counting exec() calls). | |
| forkexecline.e | This is another script similar to forkstat and movinggraph.e. The difference here is that the data is displayed on two lines of header information and a single line of data. Instead of scrolling (like vmstat) the data line is refreshed with new data each iteration. The point is to present an alternative method to display data. A similar example (of this display method is used for the mmapsline.e script. | |
| filesopened | List files opened by PID or process name. | |
| piostat.e | [PMR Error sample] Show read/write statistics for a PID. This script DOES NOT PROVIDE RELIABLE DATA. An open PMR with IBM is awaiting resolution for this script. | |
| uftdbg.tar | This is an example of the conditional compiling of uft probes in an application for debugging purposes. This tar file contains a sample Hello World! application with a make file that will compile in special functions that probevue will then monitor. These functions can then be used to trigger debug messages or stack traces, etc... | |
| longprob.e | [PMR Error sample] This script was used to demonstrate a problem with accessing long entry class variables and with the long data type when tracing 32-bit processes. | |
| scopeprob.e | [PMR Error sample] What appears to be a scoping problem was found on a system. This script (and the accompanying output scopeprob.out) were used as a demonstration of that problem. | |
| tprob.e | [PMR Error sample] This script is a demonstration of the (brokenness of the) trace() functionality within a tentative tracing "block". | |
| mmapsline.e | Reports count, average/min/max request size of system-wide mmap() calls to a single line refresh type output. Updates per-second. This is basically a modification of the forkexecline.e script for a different syscall. | |
| pnamesnoop.e | Captures all stdin to all processes matching the string-input parameter. This script has obvious security implications as it gives the user the ability to watch other users keystrokes real-time. | |
| ulong-problem.tar.gz | Sample code and oputput for the unsigned long problem. |