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Title: System memory cache is consistently at zero
Post by: camellia on July 10, 2026, 12:02:33 AM

Hi everyone

System memory cache in "Reporting Health" is always zero.

Reporting_Health_System_memory.png

Should the graph show "laundry" instead of "cache"?
Is the graph always zero because it doesn't reflect the value of "laundry"?

Title: Re: System memory cache is consistently at zero
Post by: Patrick M. Hausen on July 10, 2026, 08:57:56 AM

Are you running ZFS? ZFS ARC (adaptive replacement cache) is shown as wired, not cache. Only traditional UFS buffer cache woukd ever show up as cache.

Title: Re: System memory cache is consistently at zero
Post by: camellia on July 10, 2026, 09:04:53 PM

I am running UFS.

It appears that the "cache" metric no longer exists in the memory line of the top command. "Laundry" exists in place of "cache," and it shows a non-zero value.

If the "System memory" in "Reporting Health" follows the memory metrics used by the top command, I believe it would be better to eliminate "cache" and introduce "laundry."

Is it not possible to change the cache display, given the need to maintain compatibility with past data?

Title: Re: System memory cache is consistently at zero
Post by: nero355 on July 11, 2026, 03:10:24 AM

Quote from: camellia on July 10, 2026, 09:04:53 PMIt appears that the "cache" metric no longer exists in the memory line of the top command. "Laundry" exists in place of "cache," and it shows a non-zero value.

If the "System memory" in "Reporting Health" follows the memory metrics used by the top command, I believe it would be better to eliminate "cache" and introduce "laundry."

If you are adventurous you could edit it in the source code of the component(s) responsible for the function :)

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English Forums => General Discussion => Topic started by: camellia on July 10, 2026, 12:02:33 AM