Memory leak

From: Henning Löser <henning.loeser_at_physik.uni-marburg.de>
Date: Mon, 26 Apr 1999 17:54:19 +0200

Hi everyone,
after upgrading the memory of our alpha-workstation to 768MB and
compiling a new kernel with a stacksize of 128MB we seem to be loosing
memory under Dec-OSF4.0D. Adding up the memory sizes of the running
processes we seem to be missing roughly 350 MB running vmstat -P gives
the following output. The size of the ubc-pages seems to be
corresponding with the "missing" memory. Does this seem to be correct
for a cache to grow that large? We would be thankful for any advice.
Henning Loeser, Wolfgang Mannstadt

Total Physical Memory = 768.00 M
                      = 98304 pages


Physical Memory Clusters:

 start_pfn end_pfn type size_pages / size_bytes
         0 237 pal 237 / 1.85M
       237 98303 os 98066 / 766.14M
     98303 98304 pal 1 / 8.00k

Physical Memory Use:

 start_pfn end_pfn type size_pages / size_bytes
       237 266 unixtable 29 / 232.00k
       266 283 scavenge 17 / 136.00k
         *
       266 280 scavenge 14 / 112.00k
         *
       283 726 text 443 / 3.46M
       726 814 data 88 / 704.00k
       814 954 bss 140 / 1.09M
       955 1089 kdebug 134 / 1.05M
      1089 1094 cfgmgmt 5 / 40.00k
         *
      1096 1186 unixtable 90 / 720.00k
         *
      1199 2686 vmtables 1487 / 11.62M
      2686 98303 managed 95617 / 747.01M
                             ============================
         Total Physical Memory Use: 98064 / 766.12M

Managed Pages Break Down:

       free pages = 19923
     active pages = 8948
   inactive pages = 8727
      wired pages = 8101
        ubc pages = 49937
        ==================
            Total = 95636

WIRED Pages Break Down:

   vm wired pages = 573
  ubc wired pages = 0
  meta data pages = 2941
     malloc pages = 3955
     contig pages = 168
    user ptepages = 400
  kernel ptepages = 56
    free ptepages = 6
        ==================
            Total = 8099
Received on Mon Apr 26 1999 - 15:56:47 NZST

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