1*d4514f0bSApple OSS Distributions /* 2*d4514f0bSApple OSS Distributions * mpsc: test the MPSC interface 3*d4514f0bSApple OSS Distributions */ 4*d4514f0bSApple OSS Distributions 5*d4514f0bSApple OSS Distributions #ifdef T_NAMESPACE 6*d4514f0bSApple OSS Distributions #undef T_NAMESPACE 7*d4514f0bSApple OSS Distributions #endif 8*d4514f0bSApple OSS Distributions 9*d4514f0bSApple OSS Distributions #include <darwintest.h> 10*d4514f0bSApple OSS Distributions #include <sys/sysctl.h> 11*d4514f0bSApple OSS Distributions 12*d4514f0bSApple OSS Distributions T_GLOBAL_META(T_META_NAMESPACE("xnu.mpsc"), 13*d4514f0bSApple OSS Distributions T_META_RUN_CONCURRENTLY(true)); 14*d4514f0bSApple OSS Distributions 15*d4514f0bSApple OSS Distributions T_DECL(pingpong, "mpsc_pingpong", T_META_ASROOT(true)) 16*d4514f0bSApple OSS Distributions { 17*d4514f0bSApple OSS Distributions uint64_t count = 100 * 1000, nsecs = 0; 18*d4514f0bSApple OSS Distributions size_t nlen = sizeof(nsecs); 19*d4514f0bSApple OSS Distributions int error; 20*d4514f0bSApple OSS Distributions 21*d4514f0bSApple OSS Distributions error = sysctlbyname("kern.mpsc_test_pingpong", &nsecs, &nlen, 22*d4514f0bSApple OSS Distributions &count, sizeof(count)); 23*d4514f0bSApple OSS Distributions T_ASSERT_POSIX_SUCCESS(error, "sysctlbyname"); 24*d4514f0bSApple OSS Distributions T_LOG("%lld asyncs in %lld ns (%g us/async)", count, nsecs, 25*d4514f0bSApple OSS Distributions (nsecs / 1e3) / count); 26*d4514f0bSApple OSS Distributions } 27