RE: wrksyssts % Addresses Used field

Rob,

 

> I believe they meant 90.  Used to be a problem on the CISC

> boxes.  Has anyone reached this on a RISC box?  

 

 

We did some math on this a while back.  Someone found that the number of
Temporary Addresses available on a RISC box is 18000000000000000000 (18
Quintillion).  

 

If you consumed temporary addresses at a continuous rate of 57 Billion a
_second_ (a practical impossibility with this class of hardware), it
would still take you a full 10 years to use up all of those addresses.
At the more leisurely pace of 570,386 temporary addresses used per
second (potentially possible, but still hard to do), the machine will go
1 Million years before it needs to reclaim those addresses.  

 

We concluded that temporary address use is no longer a concern.  You're
mileage may vary.  :)

 

jte

 

PS - They ought to take this question off off the test - it's just not
relevant.

 

PPS.   You can check my math in case I got something wrong.

 


 

Seconds

in a

minute

60.00


 

Minutes

in a

hour

60.00


 

Hours

in a

day

24.00


 

Days

in a

year

365.25


 

Seconds

in a

year

31,557,600.00


 

 

 

 

 


 

 

 

 

 


 

Addresses

on an

iSeries

18,000,000,000,000,000,000.00


 

 

 

 

 


Addresses used continuously per second to consume all addresses in:

10

Years

57,038,558,065.25


Addresses used continuously per second to consume all addresses in:

20

Years

28,519,279,032.63


Addresses used continuously per second to consume all addresses in:

50

Years

11,407,711,613.05


Addresses used continuously per second to consume all addresses in:

100

Years

5,703,855,806.53


Addresses used continuously per second to consume all addresses in:

500

Years

1,140,771,161.31


Addresses used continuously per second to consume all addresses in:

1,000

Years

570,385,580.65


Addresses used continuously per second to consume all addresses in:

10,000

Years

57,038,558.07


Addresses used continuously per second to consume all addresses in:

100,000

Years

5,703,855.81


Addresses used continuously per second to consume all addresses in:

500,000

Years

1,140,771.16


Addresses used continuously per second to consume all addresses in:

1,000,000

Years

570,385.58

 

--

John Earl | Chief Technology Officer

The PowerTech Group

19426 68th Ave. S

Seattle, WA 98032

(253) 872-7788 ext. 302

john.earl@xxxxxxxxxxxxx

www.powertech.com 

 

 

 

This email message and any attachments are intended only for the use of
the intended recipients and may contain information that is privileged
and confidential. If you are not the intended recipient, any
dissemination, distribution, or copying is strictly prohibited. If you
received this email message in error, please immediately notify the
sender by replying to this email message, or by telephone, and delete
the message from your email system.

--