| Title | Sc |
| Revision | |
| Purpose | Swap Count - Real time swapping monitor |
| Package type | program |
| Application area | operating system |
| Abstract | The Swap Count utility program reads from the proc table information about processes running on the system. Included is their size, whether connected to a tty, process id, whether in core or swapped, the number of times the processes has swapped during its lifetime, CPU seconds used, and the processes current itime - the number of seconds since the last interactive input. Sc is useful in detecting whether swapping is the source of poor interactive response. |
| Submittor | Bob Ciotti |
| Contact | Bob Ciotti |
| Phone | (415)604-4408 |
| ciotti@nas.nasa.gov | |
| Company/ Institution | Numerical Aerodynamic Simulation - NASA Ames Research Ctr |
| CUG Site Code | |
| Distribution method | Documentation Librarian M/S N258-6 NASA Ames Research Center Moffett Field, CA, 95035-1000 Email: doc-center@nas.nasa.gov Phone: (415)604-4632 |
| URL | |
| Distribution restrictions | US sites only |
| Copyright | NASA Development Software - not for export from US |
| License required | no |
| License fee | n.a. |
| Hardware | Y-MP |
| Operating System | UNICOS 6.0 |
| Compiler(s) | scc |
| Program support | when schedule permits |
| Documentation | man pages |
| Portability to other UNIX systems | Not Portable |
| Additional comments | Sc is useful for determining whether swapping is the cause of poor interactive response. The itime/smallproc scheduler mod (information listed in CUGDUS) was written as a result of what this utility told us about how our system was behaving - that being the scheduler prejudicially swapping out small interactive processes. There is a problem in tracking down the socket daemon for which your process is associated, which may be the source of your interactive response problems. The rlogind/telnetd pid is going to be very close to your login shell pid though. |