15 Jun
2012
15 Jun
'12
9:55 p.m.
On Fri, 2012-06-15 at 21:40 +0000, Luck, Tony wrote:
We store the log in a binary format and then decode it at read time.
What are the advantages of this compared to creating the human readable text and saving a blob of text?
With function tracing the impact to performance is tremendous. Just recording two long words is a 130% hit to performance. Now multiply that to recording strings.
What does this "binary format" look like? Will it ever change? Remember that we may reboot to a different kernel - so we have to be really sure that the newer (or older) version can do the decode.
Good question.
-- Steve