Message353556
| Author | vstinner |
|---|---|
| Recipients | LorenzMende, ammar2, eryksun, heckad, paul.moore, skoslowski, steve.dower, tim.golden, vstinner, zach.ware |
| Date | 2019-09-30.08:56:15 |
| SpamBayes Score | -1.0 |
| Marked as misclassified | Yes |
| Message-id | <1569833775.66.0.0569298657094.issue36670@roundup.psfhosted.org> |
| In-reply-to |
| Content | |
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We could avoid typeperf command by accessing directly performance counters: (1) The Performance Data Helper (PDH) interface, which provides high-level access to data from both version 1 and version 2 performance counter providers. (2) The registry interface, which provides low-level access to data from performance counter providers. (3) The performance library interface, which provides direct access to data from version 2 performance counter providers. https://docs.microsoft.com/en-us/windows/win32/perfctrs/consuming-counter-data (2) in short: RegQueryValueEx() with HKEY_PERFORMANCE_DATA and the PPERF_DATA_BLOCK structure Documentation: https://docs.microsoft.com/en-us/windows/win32/perfctrs/using-the-registry-functions-to-consume-counter-data PERF_DATA_BLOCK structure fields: https://docs.microsoft.com/en-us/windows/win32/api/winperf/ns-winperf-perf_data_block Example: https://docs.microsoft.com/en-us/windows/win32/api/winreg/nf-winreg-regqueryvalueexw Some examples mention "RegQueryValueEx function. Use HKEY_PERFORMANCE_DATA". Performance Data Format: https://docs.microsoft.com/en-us/windows/win32/perfctrs/performance-data-format -- PDH & friends was discussed in bpo-34060 which added the feature to libregrtest. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2019-09-30 08:56:15 | vstinner | set | recipients: + vstinner, paul.moore, tim.golden, zach.ware, eryksun, steve.dower, ammar2, LorenzMende, skoslowski, heckad |
| 2019-09-30 08:56:15 | vstinner | set | messageid: <1569833775.66.0.0569298657094.issue36670@roundup.psfhosted.org> |
| 2019-09-30 08:56:15 | vstinner | link | issue36670 messages |
| 2019-09-30 08:56:15 | vstinner | create | |