The branch main has been updated by cperciva:
URL:
https://cgit.FreeBSD.org/src/commit/?id=cd165c8bf05452d38ce552ae819d87378fecf52f
commit cd165c8bf05452d38ce552ae819d87378fecf52f
Author: Colin Percival <cperc...@freebsd.org>
AuthorDate: 2021-09-10 00:01:00 +0000
Commit: Colin Percival <cperc...@freebsd.org>
CommitDate: 2021-09-10 00:02:15 +0000
x86/tsc.c: Add TSLOG to test_tsc
On my benchmark system this takes ~ 14 ms; enough to be worth
recording in the boot time profile.
---
sys/x86/x86/tsc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sys/x86/x86/tsc.c b/sys/x86/x86/tsc.c
index 0ebcea895cd3..15e6037c68ee 100644
--- a/sys/x86/x86/tsc.c
+++ b/sys/x86/x86/tsc.c
@@ -511,6 +511,7 @@ test_tsc(int adj_max_count)
if (vm_guest == VM_GUEST_VBOX)
return (0);
+ TSENTER();
size = (mp_maxid + 1) * 3;
data = malloc(sizeof(*data) * size * N, M_TEMP, M_WAITOK);
adj = 0;
@@ -531,6 +532,7 @@ retry:
printf("SMP: %sed TSC synchronization test%s\n",
smp_tsc ? "pass" : "fail",
adj > 0 ? " after adjustment" : "");
+ TSEXIT();
if (smp_tsc && tsc_is_invariant) {
switch (cpu_vendor_id) {
case CPU_VENDOR_AMD:
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