System Thread Priorities

This is a list of threads executing on the system during normal operation.

Production devices

Thread Priority	Thread Name	Owner Process	Notes
16	nn.bus.MainThread	Bus
16	nn.i2c.IpcServer	Bus
16	nn.i2c.ForPcvIpcServer	Bus
16	nn.gpio.IpcServer	Bus
16	nn.gpio.InterruptHandler	Bus
16	nn.pinmux.IpcServer	Bus
16	nn.sasbus.IpcServer	Bus
16	nn.sasbus.PeriodicReceiveModeThread	Bus
16	nn.uart.IpcServer	Bus
16	nn.uart.InterruptHandler	Bus
16	nn.usb.MainThread	usb
16	nn.usb.DsIpcServer	usb	usb spawns four copies of this thread to handle usb:ds IPC requests.
16	nn.usb.DsProtocol	usb
16	nn.usb.DsThread	usb
16	nn.usb.HsIpcServer	usb	usb spawns two copies of this thread to handle hs IPC requests.
16	nn.usb.HsThread	usb
16	nn.usb.InterruptHandler	usb
16	nn.usb.PmIpcServer	usb
27	nn.boot.Main	boot	This is the real name for nn.boot.MainThread.
27	nn.spl.MainThread	spl
27	nn.sm.MainThread	sm
30	nn.pcie.Main	pcie	This is the real name for nn.pcie.MainThread.
30	nn.pcie.InterruptHandler	pcie
37	nn.psc.Main	psc	This is the real name for nn.psc.MainThread.
37	nn.psc.IpcServer	psc
37	nn.psc.PmControl	psc
37	nn.srepo.IpcServer	psc
37	nn.pwm.IpcServer	Bus
37	nn.usb.PdAlert	usb
37	nn.usb.PdExecute	usb
37	nn.usb.PdReceiveVdm	usb
37	nn.usb.PdServer	usb
37	nn.usb.InputNotifier	usb
38	nn.tma.MainThread	tma
38	nn.usb.PdCradleServer	usb
39	nn.gc.DeviceDetector	fs
39	nn.sdmmc.DeviceDetector	fs
44	nn.fs.WorkerThreadPool	fs
45	nn.fs.MainThread	fs
46	nn.fs.WorkerNormalPriorityAccess	fs	fs spawns five copies of this thread to handle fsp-srv IPC requests
48	nn.boot2.MainThread	boot2
49	nn.ncm.MainWaitThreads	ncm	This is the real name for nn.ncm.MainThread.
49	nn.ncm.ContentManagerServerIpcSession	ncm
49	nn.ncm.LocationResolverServerIpcSession	ncm
49	nn.Loader.MainThread	Loader
49	nn.pm.MainThread	pm
49	nn.pm.ProcessTrack	pm
49	nn.settings.Main	settings	This is the real name for nn.settings.MainThread.
49	nn.settings.IpcServer	settings
49	nn.settings.LazyWriter	settings
58	nn.fs.PatrolReader	fs