thrashing

[Aggelos Economopoulos]

On Sat, 06 Mar 2004 22:45:24 +0200
George Floros <floros74 at panafonet.gr> wrote:

> επειδη προφανως καποιοι δεν ξερουν τι θα πει thrashing αισθανομαι
> καπως υπευθυνος.

(auto to sxoliazw me th siwph mou)

> Ετσι θα διευκρινισω οτι thrashing σα απλα Ελληνικα ειναι το φαινομενο 
> μιας καταιγιδας απο interrupts υψηλης προτεραιοτητας τα οποια μπορουν
> να συμπιεσουν το φυσιολογικο processing.

Egw pali pws exw thn entupwsh oti to thrashing parathreitai otan to
susthma perna to xrono tou na phgainofernei selides pros/apo to
secondary storage? Gia na dw an o AST exei na pei tipota gia auto sto
mallon _eisagwgiko_ biblio tou "Operating Systems, Design and
Implementation":

"A program causing page faults every few instructions is said to be
thrashing"

Epishs o AST exei ena reference paliotero apo osa mporw egw na brw, apo
ta proceedings tou AFIPS National Computing Conference (1968), to
"Thrashing: Its causes and prevention" tou P.J. Denning, suggrafea tou
polu gnwstou "The working set model for program behaviour". Xwris na to
exw diabasei pote, fantazomai oti ekei 8a breis kati san "thrashing
parathroume sunh8ws otan to working set den xwraei sth dia8esimh mnhmh".

8a endiaferomoun pantws an mporouses na mou breis references se
literature pou na anaferetai sto interrupt storm san thrashing.

Aggelos