zdb: show dedup table and log attributes #16755
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amotin
reviewed
Nov 14, 2024
There's interesting info in there that is going to help with understanding dedup behaviour at any given moment. Since this is a format change, tests that rely on that output have been modified to match. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Signed-off-by: Rob Norris <[email protected]>
amotin
reviewed
Nov 15, 2024
behlendorf
approved these changes
Nov 20, 2024
behlendorf
reviewed
Nov 20, 2024
| (u_longlong_t)count, | ||
| (u_longlong_t)dspace, | ||
| (u_longlong_t)mspace); | ||
| (void) printf("%s: dspace=0x%llx; mspace=0x%llx; entries=%llu\n", name, |
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Suggested change
| (void) printf("%s: dspace=0x%llx; mspace=0x%llx; entries=%llu\n", name, | |
| (void) printf("%s: dspace=%llu; mspace=%llu; entries=%llu\n", name, |
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[Sponsors: Klara, Inc., Wasabi Technology, Inc.]
Motivation and Context
Commenting on #16752, and realised we didn't have a way to definitely show what kind dedup options are in place.
Description
Extends
dump_ddt()to show container config (version, flags) and log flags and other info. A bit more lowlevel detail as befits a debugger.Goes on to show the histograms and etc as it did before, so something for everyone.
How Has This Been Tested?
Just eyeballing on various test dedup configs and load generators I have lying around.
Types of changes
Checklist:
Signed-off-by.