How do I find out what is hammering my SQL Server?

Question

My SQL Server CPU has been at around 90% for the most part of today.

I am not in a position to be able to restart it due to it being in constant use.

Is it p

Answer 1

Run either of these a few second apart. You'll detect the high CPU connection. Or: stored CPU in a local variable, WAITFOR DELAY, compare stored and current CPU values

select * from master..sysprocesses
where status = 'runnable' --comment this out
order by CPU
desc

select * from master..sysprocesses
order by CPU
desc

May not be the most elegant but it'd effective and quick.