From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Sahibzada Irfanullah <irfan.gomalian@gmail.com>
Cc: kernelnewbies@kernelnewbies.org
Subject: Re: Generating Log of Guest Physical Addresses from a Kernel Function and Perform Analysis at Runtime
Date: Tue, 24 Sep 2019 07:16:38 -0400 [thread overview]
Message-ID: <242780.1569323798@turing-police> (raw)
In-Reply-To: <CAGaWEboQtbz=z6wW28fE+r1qvdoZASvStVF4GAryz9R+crL1-w@mail.gmail.com>
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On Tue, 24 Sep 2019 19:10:59 +0900, Sahibzada Irfanullah said:
> My actual goal is to generate log of physical addresses for different
> applications by writing them into the file, and then perform some analysis
What makes you think that the log of physical addresses will tell you anything
useful or interesting?
Hint: Pretty much all physical pages usable for process space are identical as far
as the kernel is concerned, and if a virtual or disk cache page is pulled into memory
from disk more than once, the same virtual page can end up in different physical
pages.each time.
> at runtime in this function by reading the logs from the log file.
> Furthermore, I want a file which size can dynamically grow as the size of
> log increases.
Are you trying to do this *at runtime in real time*, or is post-run analysis OK?
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next prev parent reply other threads:[~2019-09-24 11:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-24 10:10 Generating Log of Guest Physical Addresses from a Kernel Function and Perform Analysis at Runtime Sahibzada Irfanullah
2019-09-24 11:16 ` Valdis Klētnieks [this message]
2019-09-24 11:26 ` Sahibzada Irfanullah
2019-09-24 18:55 ` Valdis Klētnieks
2019-09-25 2:44 ` Sahibzada Irfanullah
2019-09-25 7:00 ` Sahibzada Irfanullah
2019-09-25 9:38 ` Greg KH
2019-09-25 14:21 ` Ruben Safir
2019-09-25 17:08 ` Greg KH
2019-09-25 18:04 ` Ruben Safir
2019-09-26 6:45 ` Sahibzada Irfanullah
2019-09-26 10:05 ` Brock
2019-09-26 22:56 ` Valdis Klētnieks
2019-09-25 16:42 ` Valdis Klētnieks
2019-09-24 13:29 ` Greg KH
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