Bug ID 527976: pagemem tmctl table changed to page_stats

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6

Fixed In:

Opened: Jun 15, 2015

Severity: 2-Critical


TMM has a tmctl statistic table called pagemem which shows two elements: available pages and used pages. These provide the totals across all TMM threads, and while accurate, they do not show fragmentation.


This can lead to situations where TMM might try and allocate a large number of contiguous pages, which will fail, even though the pagemem avail stat shows the total pages being available.


This occurs when looking at the pagemen statistics.


None. This is a cosmetic issue.

Fix Information

The pagemem tmctl table has been replaced with a new table called page_stats which provides much more detailed information about physical page clustering. The original 'avail' and 'used' statistics are still there, although they are reported on a per-thread basis. Additional statistic buckets for page diagnostics are introduced.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips