--- nono/host/hostdevice.cpp	2026/04/29 17:05:21	1.1.1.3
+++ nono/host/hostdevice.cpp	2026/04/29 17:05:30	1.1.1.4
@@ -12,7 +12,7 @@
 #include "scheduler.h"
 
 // コンストラクタ
-HostDevice::HostDevice(Device *parent_, int objid_)
+HostDevice::HostDevice(Device *parent_, uint objid_)
 	: inherited(objid_)
 {
 	parent = parent_;
@@ -110,6 +110,8 @@ HostDevice::SetAcceptCallback(DeviceCall
 void
 HostDevice::ThreadRun()
 {
+	SetThreadAffinityHint(AffinityClass::Light);
+
 	for (; exit_requested == false; ) {
 		struct kevent kev;
 		int r;
@@ -202,11 +204,11 @@ HostDevice::putlogn(const char *fmt, ...
 	int len;
 
 	uint64 vt = scheduler->GetVirtTime();
-	len = snprintf(buf, sizeof(buf), "%4d.%03d'%03d'%03d %s ",
-		(int)(vt / 1000 / 1000 / 1000),
-		(int)((vt / 1000 / 1000) % 1000),
-		(int)((vt / 1000) % 1000),
-		(int)(vt % 1000),
+	len = snprintf(buf, sizeof(buf), "%4u.%03u'%03u'%03u %s ",
+		(uint)(vt / 1000 / 1000 / 1000),
+		(uint)((vt / 1000 / 1000) % 1000),
+		(uint)((vt / 1000) % 1000),
+		(uint)(vt % 1000),
 		GetName().c_str());
 
 	va_start(ap, fmt);