Mailinglist Archive: opensuse-bugs (13227 mails)

[bugzilla_noreply@xxxxxxxxxx]

https://bugzilla.novell.com/show_bug.cgi?id=405246


           Summary: Free memory reported by free, vmstat and top is wrong.
           Product: openSUSE 11.0
           Version: Final
          Platform: x86-64
        OS/Version: openSUSE 11.0
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: Basesystem
        AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: bart.vanassche@xxxxxxxxx
         QAContact: qa@xxxxxxx
          Found By: Customer


The "free memory -/+ buffers/cache" value as displayed by the free, vmstat and
top tools is wrong because these tools do not take the most recently introduced
fields of /proc/meminfo into account. An example of the output of free:
$ free
             total       used       free     shared    buffers     cached
Mem:       2060680     566836    1493844          0      16048     265784
-/+ buffers/cache:     285004    1775676
Swap:      2104472          0    2104472

The correct values are on the test system are:
$ /usr/bin/awk </proc/meminfo
'/^MemTotal/{t=$2}/^MemFree/{f=$2}/^Buffers:/{b=$2}/^Cached:/{c=$2}/^SwapCached:/{sc=$2}/^SReclaimable:/{sr=$2}'\
'END{print "Total: " t " KB, in use: " t-f-b-c-sc-sr ", free: " f+b+c+sc+sr "
KB."}'
Total: 2060680 KB, in use: 270548, free: 1790132 KB.


For a patch which fixes all three tools at once, see also:
http://marc.info/?l=linux-mm&m=120496901605830&w=2


-- 
Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.