CND68IOMonitor
Input/Output Monitor (part of J&B project)
Team
Dev: Alexey Vladykin (AV; NB nick: alexey_vladykin)
Lead: Maria Tishkova (MT; NB nick: mromashova)
Charter
Assist user in identifying and solving typical I/O problems.
It must work on Solaris.
For reference: integesting I/O-related information:
- is file read/written char-by-char or in large blocks? (large blocks are usually faster)
- how many files are open simultaneously? (file handles can be exhausted)
- how many times is the same file opened?
- what files were accessed?
- how much data has the program read/written?
Existing I/O profiling tools (including Java)
- http://domino.research.ibm.com/comm/research_projects.nsf/pages/hpct.mio.html
- http://live.gnome.org/iogrind
- https://wiki.sdn.sap.com/wiki/display/Java/JPicus
Goals
Implement data collector, indicator, and details view.
Replace original SunStudio's R/W, I/O and F/S monitors.
User View
Metrics
Open bug count. The less - the better.
Test Plan
Schedule
| Milestone | Date | Content |
|---|---|---|
| M0 | Jul 24 | Planning |
| M1 | Jul 31 | Implementation |
| M2 | Aug 14 | Bugfixing, UI changes (if any) |
Risks and dependencies
Status and test results
Mostly done. Cosmetic changes underway - icons and file count on indicator.
