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vv-lab:readerswriters [2015/02/18 22:58] (current) egm created |
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| + | [[Concurrency Tool Comparison]] | ||
| + | == Model Description == | ||
| + | A readers writers example that contains a race condition. | ||
| + | |||
| + | Classes: 6 | ||
| + | |||
| + | SLOC: 103 | ||
| + | |||
| + | Parameters (checkForDeadlock) | ||
| + | |||
| + | == Summary Results Table == | ||
| + | |||
| + | {| align=center | border=1 | ||
| + | |- bgcolor="white" | | ||
| + | | colspan=5 align="center" | rwN () | ||
| + | |- bgcolor="lightblue" | ||
| + | ! Tool | ||
| + | ! Trials (successful) | ||
| + | ! Time | ||
| + | ! Transition (paths) | ||
| + | ! Max Depth (error depth) | ||
| + | |- | ||
| + | | JPF "Randomized DFS" | ||
| + | | 118 (94) 0.80 | ||
| + | | align="right"| 1.27s | ||
| + | | 575.14 (0.00) | ||
| + | | 574.14 (574.14) | ||
| + | |- | ||
| + | | JPF Stateless Random Walk | ||
| + | | 10181 (7820) 0.77 | ||
| + | | align="right"| NA | ||
| + | | NA (NA) | ||
| + | | NA (NA) | ||
| + | |} | ||
| + | |||
| + | ==Java PathFinder== | ||
| + | ===Stateless Random Walk=== | ||
| + | |||
| + | * 10,000 Trials of Random Walk | ||
| + | * The ratio of the error discovery trials over the total number of trials is the | ||
| + | path error density. | ||
| + | |||
| + | ====No Exception Check==== | ||
| + | |||
| + | {| align=center | border=1 | -bgcolor=grey | ||
| + | ! Parameters !! Path Error Density | ||
| + | |- | ||
| + | | default || 0.076 | ||
| + | |} | ||
| + | |||
| + | ===Stateful Randomized Depth-first search=== | ||
| + | |||
| + | * 100 randomized depth-first search trial, where each trial is time-bounded at | ||
| + | one hour. A total of 100 computation hours dedicated in discovering the error. | ||
| + | |||
| + | * 2 MB of RAM allocated on each machine | ||
| + | |||
| + | * The Error Discovering Trials is the number of trials that discovered an error | ||
| + | among the initially launched trials (100). | ||
| + | {| align="center" | border=1 | ||
| + | |- bgcolor="lightblue" | ||
| + | ! Parameters | ||
| + | ! Trials (successful) | ||
| + | ! Time | ||
| + | ! Transition (paths) | ||
| + | ! Max Depth (error depth) | ||
| + | ! abs time (ms) | ||
| + | ! rel. time (ms) | ||
| + | ! search depth | ||
| + | ! errorDepth | ||
| + | ! new states | ||
| + | ! revisited states | ||
| + | ! end states | ||
| + | ! backtracks | ||
| + | ! processed states | ||
| + | ! restored states | ||
| + | ! total memory (kB) | ||
| + | ! max total memory | ||
| + | ! free memory (kB) | ||
| + | ! heap objects | ||
| + | ! max heap objects | ||
| + | |||
| + | |- | ||
| + | |(N) | ||
| + | | 118 (94) 79.66% | ||
| + | | align="right"| 1.27s | ||
| + | | 575.14 (0.00) | ||
| + | | 574.14 (574.14) | ||
| + | | align="right" | 1269.11 | ||
| + | | align="right" | 1269.11 | ||
| + | | align="right" | 574.14 | ||
| + | | align="right" | 574.14 | ||
| + | | align="right" | 575.14 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 17960.17 | ||
| + | | align="right" | 6990528.00 | ||
| + | | align="right" | 0.00 | ||
| + | | align="right" | 156.69 | ||
| + | | align="right" | 173.64 | ||
| + | |} | ||
| + | |||
| + | |||
| + | ==CHESS== | ||
| + | {| align=center | border=1 | | ||
| + | |- bgcolor="lightblue" | ||
| + | ! Parameters !! Time !! Transitions !! paths !! Max Depth | ||
| + | |- | ||
| + | | 2, 2, 100 || 391329 || 67920000 || 24000 || 2830 | ||
| + | |||
| + | |} | ||
