SUMMARY:Why swap Reserved space so big

From: han dong liang hdl <hdl_at_mx.hd.gov.cn>
Date: Sun, 02 Apr 2000 14:30:03 +0800

My original message is at the bottom of this email. Thank you to all who responded. The list of all these kind people
includes:
 Sean Harding
  Thomas Lahey
   Robert carsey
   Davis Alan
   Dr.Tom P,Blinn
  Alam Pittman
   Frank Wortner

There are 2 Swap Space allocation mode;
1. Immediate Mode, eager mode, reserves swap space.
 
2. Deferred Mode. lazy mode, reserves swap only if the virtual memory subsystem needs to write a modified virtual page to swap space. This is recommended for large-memory system.

delete or remove /sbin/swapdefault. ok!
hello everyone,
  When I run a bigger a program,the console display "swap space below 10 percent free".I execute "swapon -s" display:
  Swap partition /dev/re0b (default swap):
    Allocated space: 67695 pages (528MB)
    In-use space: 4484 pages ( 6%)
    Free space: 63211 pages ( 93%)
 
Swap partition /dev/rz0b:
    Allocated space: 65715 pages (513MB)
    In-use space: 4397 pages ( 6%)
    Free space: 61318 pages ( 93%)
 

Total swap allocation:
    Allocated space: 133410 pages (1042MB)
    Reserved space: 111856 pages ( 83%)
    In-use space: 8881 pages ( 6%)
    Available space: 21554 pages ( 16%)
 
Why swap Reserved space so big?
 
Received on Mon Apr 03 2000 - 06:32:22 NZST

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