* [Consult] locking/spinlock/:why *nklock* used in many places?
@ 2020-06-09 14:07 carver
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From: carver @ 2020-06-09 14:07 UTC (permalink / raw)
To: xenomai
hello,Liuhailonghavesomedoubtsonxenomaimaster.Weuseipipe-core-4.19.82-cip14-x86_64+xenomai-3.1onmymachinewith16processors;everythingisfineuntilwerunthe*latency-t0*testcaseoncpu1-cpu15forourschedulebenchmark.Whatwefoundthattheresultsofthetestcasebecameverypoor,worsethantestingononeprocessor.Thenweconfig*IPIPE_TRACE=y*and*XENO_OPT_DEBUG_LOCKING=y*,andrunthesametestcases,wefoundthedelaysofthetestcasecausedbytheGlobal*nklock*.Wearewonderingwhythesamelock*nklock*isusedinmanyplacesinthexenomaisourcecode.Isthisnecessary?Ordoyouhaveoptimizationsforthissituationinthefuture?Thanks.随心邮-在微信里收发邮件，及时省电又安心
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2020-06-09 14:07 [Consult] locking/spinlock/:why *nklock* used in many places? carver
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