{"id":8242,"date":"2013-03-02T19:05:32","date_gmt":"2013-03-02T19:05:32","guid":{"rendered":"http:\/\/www.beautifulwork.org\/?p=8242"},"modified":"2013-03-02T19:05:32","modified_gmt":"2013-03-02T19:05:32","slug":"linux-kernel-testing-cyclictest-detail","status":"publish","type":"post","link":"https:\/\/www.trueangle.org\/index.php\/2013\/03\/02\/linux-kernel-testing-cyclictest-detail\/","title":{"rendered":"Linux KERNEL TESTING cyclictest  DETAIL"},"content":{"rendered":"<p><u>ABOUT SOFTWARE TESTING<\/u><\/p>\n<pre>\nSoftware testing is an investigation conducted to provide stakeholders with information about the quality of the software product or service under test.[1] Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include the process of executing a program or application with the intent of finding software bugs (errors or other defects), and verifying that the software product is fit for use.\n<\/pre>\n<p><u>TYPICAL COMMANDLINE RELATED EXPOSURE<\/u><br \/>\n[bash]<br \/>\n$sudo .\/cyclictest &#8211;smp -p95 -f -b 200<br \/>\n# \/dev\/cpu_dma_latency set to 0us<br \/>\nINFO: debugfs mountpoint: \/sys\/kernel\/debug\/tracing\/<br \/>\ncould not set ftrace_enabled to 1<br \/>\nRequested tracer &#8221; not available<br \/>\ncould not set tracing_max_latency to 0<br \/>\npolicy: fifo: loadavg: 0.16 0.24 0.17 1\/364 16976<\/p>\n<p>T: 0 (16976) P:95 I:1000 C:   2902 Min:      7 Act:   15 Avg:   20 Max:     169<br \/>\n# Thread Ids: 16976<br \/>\n# Break thread: 16976<br \/>\n# Break value: 246<br \/>\ncould not set ftrace_enabled to 0<br \/>\n[\/bash]<br \/>\n[bash]<br \/>\n$sudo .\/cyclictest &#8211;smp -p95 -f -b 100<br \/>\n# \/dev\/cpu_dma_latency set to 0us<br \/>\nINFO: debugfs mountpoint: \/sys\/kernel\/debug\/tracing\/<br \/>\ncould not set ftrace_enabled to 1<br \/>\nRequested tracer &#8221; not available<br \/>\ncould not set tracing_max_latency to 0<br \/>\npolicy: fifo: loadavg: 0.27 0.15 0.14 2\/361 16999<\/p>\n<p>T: 0 (    0) P:95 I:1000 C:      0 Min:1000000 Act:    0 Avg:    0 Max:       0<br \/>\n# Thread Ids: 16999<br \/>\n# Break thread: 16999<br \/>\n# Break value: 161<br \/>\ncould not set ftrace_enabled to 0<br \/>\n[\/bash]<br \/>\n[bash]<br \/>\n$sudo .\/cyclictest &#8211;smp -p95 -f -b 1000<br \/>\n# \/dev\/cpu_dma_latency set to 0us<br \/>\nINFO: debugfs mountpoint: \/sys\/kernel\/debug\/tracing\/<br \/>\ncould not set ftrace_enabled to 1<br \/>\nRequested tracer &#8221; not available<br \/>\ncould not set tracing_max_latency to 0<br \/>\npolicy: fifo: loadavg: 0.17 0.14 0.14 3\/361 17002<\/p>\n<p>T: 0 (17002) P:95 I:1000 C:  35587 Min:      7 Act:   32 Avg:   20 Max:     264<br \/>\n^C# Thread Ids: 17002<br \/>\ncould not set ftrace_enabled to 0<br \/>\n$<\/p>\n<p>[\/bash]<br \/>\nLINKS<br \/>\n<a href=\"https:\/\/events.static.linuxfound.org\/sites\/events\/files\/slides\/cyclictest.pdf\">https:\/\/events.static.linuxfound.org\/sites\/events\/files\/slides\/cyclictest.pdf<\/a><br \/>\n<a href=\"https:\/\/en.wikipedia.org\/wiki\/Software_testing\">https:\/\/en.wikipedia.org\/wiki\/Software_testing<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ABOUT SOFTWARE TESTING Software testing is an investigation conducted to provide stakeholders with information about the quality of the software product or service under test.[1] Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include the process &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.trueangle.org\/index.php\/2013\/03\/02\/linux-kernel-testing-cyclictest-detail\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Linux KERNEL TESTING cyclictest  DETAIL&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[83],"tags":[988,1567],"_links":{"self":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/8242"}],"collection":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/comments?post=8242"}],"version-history":[{"count":0,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/8242\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/media?parent=8242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/categories?post=8242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/tags?post=8242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}