Hi Everyone,
I have a query regarding zpool compression for performance improvements . Can you please clarify?
Available statistics of the bptm debug logs to the last seven days show serious waits and
delays on daily and weekly duplication jobs. On the "waited for full buffer" side, there are
average delays up to 3 sec. each wait event indicating slow read performance on the
DSSU. On the "waited for empty buffer" side, the values are not critical. To sum up: It
looks like the duplication jobs suffer from slow DSSU reading.
The zpool based file system under uses compression. Of course, this
setting slows down read and write performance. Furthermore, the current compression
ratio is about 2, thus saving 50% storage.
! should the file system compression should be disabled temporarily in order to check for performance
improvements. If we disable the compression what are the impacts?
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