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https://www.sqlskills.com/blogs/joe/observer-overhead-the-perils-of-too-much-tracing/ SQL Server Performance Tuning, High Availability and Disaster Recovery Blog Wed, 16 Nov 2011 01:45:11 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://www.sqlskills.com/blogs/joe/observer-overhead-the-perils-of-too-much-tracing/#comment-663 Wed, 16 Nov 2011 01:45:11 +0000 /blogs/joe/post/Observer-overhead-e28093-the-perils-of-too-much-tracing.aspx#comment-663 Thanks Amanda!

]]> https://www.sqlskills.com/blogs/joe/observer-overhead-the-perils-of-too-much-tracing/#comment-662 Tue, 15 Nov 2011 10:41:13 +0000 /blogs/joe/post/Observer-overhead-e28093-the-perils-of-too-much-tracing.aspx#comment-662 I kinda wanted to know who exactly was doing what,so I added a few simple things:
SELECT
s.host_name,
s.program_name,
t.path,
t.buffer_count,
t.reader_spid,
t.start_time,
t.last_event_time ,
s.client_interface_name,
r.command,
s.login_name,
s.nt_user_name
FROM sys.traces t
left outer join
sys.dm_exec_sessions s
on t.reader_spid = s.session_id
left outer join
sys.dm_exec_requests r
on t.reader_spid = r.session_id

]]> https://www.sqlskills.com/blogs/joe/observer-overhead-the-perils-of-too-much-tracing/#comment-661 Tue, 01 Nov 2011 10:46:50 +0000 /blogs/joe/post/Observer-overhead-e28093-the-perils-of-too-much-tracing.aspx#comment-661 Adding a comment to my own post – but just to call out a good distinction that Aaron Betrand made in case anyone walked away with a similar assumption: While the TRACEWRITE helped point to the root cause (heavy tracing) – this isn’t to be confused with the waits being the cause itself. The wait types help orient you in troubleshooting a case like this.

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