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Can the avg Log File Parallel Write wait be > the avg Log File Sync wait?

in Database Tuning (MOSC) 5 commentsAnswered

Can the avg Log File Parallel Write wait be > the avg Log File Sync wait? My understanding is that it can't. This comes from what I infer from two MOS docs:

As I read MOS Doc ID 34592.1 about LFS, there is this:

"The log file sync wait may be broken down into the following components:

1. Wakeup LGWR if idle

2. LGWR gathers the redo to be written and issue the I/O

3. Time for the log write I/O to complete

4. LGWR I/O post processing

5. LGWR posting the foreground/user session that the write has completed

6. Foreground/user session wakeup"

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