GER610 Archives

June 2007

GER610@LISTSERV.MIAMIOH.EDU

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Guerra U.Allan" <[log in to unmask]>
Reply To:
Miami Univ GER 610 (Prof A B Willeke) [Self-Paced & Year Around
Date:
Thu, 21 Jun 2007 20:41:26 +0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (92 lines)
Frenzy Pushes SREA Up 46.6%

Score One Inc. (SREA)
$0.44 UP 46.6%

SREA is in a frenzy as investor buying pushed it Up over 46% by close
Wed. Up 427% in just over a week. Get all over SREA Thursday!

What Are the Advantage of Multithreading Over Multiprocess Programming?
Functions mentioned in subcommands can change.
AJAX resources for serious developers Acrylic on canvas - Evening flight
in the marshland Santa Cruz boardwalk - few pictures Testing if Object
List Data Provider is transactional? One of LockLint's jobs is to
determine if variable accesses are consistently protected.

Limitations of LockLint There are limitations to LockLint's analysis. It
performs runtime checking if assertions are enabled.

The result is a report on the following problems:  Functions that
produce side effects on locks or violate assertions made about side
effects on locks.

This allows for easy description of a structure in which all but one or
two members are protected in the same way.
Improved throughput reduces the cost of computing because fewer systems
are needed to do the same amount of work. How Can Application Developers
Take Advantage of Sun's Multithreaded Products? Rate and Review Tell us
what you think of the content of this page. What Is Sun's Open Source
Strategy?

There are some assignments LockLint cannot deduce.

Remember that any name mentioned in an annotation must already have been
declared.

If LockLint has been informed of such ordering using this annotation, an
informative message is produced whenever the order is violated. If you
are unconcerned about accesses to a particular variable, you can remove
it from consideration by using the ignore subcommand.

A process is a heavyweight entity that lives inside the kernel. CMT
technology can process multiple tasks from multiple software threads
simultaneously, which improves throughput compared to single threaded
processing on single threaded processors.

Multiprocess programming is much more difficult than multithreaded
programming, performance is slower, and management of resources is
difficult. See LockLint Naming Conventions for details on specifying
names to LockLint subcommands. Because no generic meaning is possible,
synch. LockLint Subcommands Some of these are equivalent to subcommands
such as assert. For example, a driver might make such an assertion to
say that no other threads are running in this driver for the same
device. Miscellaneous problems related to analysis of the source code in
relation to assertions and locks. The API was primarily designed to
support statistical sampling of callstacks, but it also contains
extensions to support tracing.
What is this Data Provider in Sun Java Studio Creator anyway?
However, the proper operation of LockLint requires that a given variable
or lock be known by exactly one name.

In general, it's preferable to use source code annotations over these
subcommands, as explained next.

Miscellaneous problems related to analysis of the source code in
relation to assertions and locks.

Some examples help show how these annotations are used. To prevent this,
use the disallow and reallow subcommands to inform LockLint of execution
paths that never occur. Annotations, being mixed in with the code that
they describe, are generally better maintained than a script of LockLint
subcommands.

The declare root subcommand can be used to fix this situation for a
subsequent analysis.

Such functions may access data without holding locks, after waiting for
all other threads to exit.

A process is a heavyweight entity that lives inside the kernel.
These subcommands tell LockLint how the programmer expects locks and
variables to be accessed and modified in the application being checked.
If you are unconcerned about accesses to a particular variable, you can
remove it from consideration by using the ignore subcommand. However, if
LockLint is not told about this coverage relationship, it assumes that
the locks are being used according to the usual conventions and
generates error messages. This information is particularly useful in
understanding lock ordering problems and making assertions about those
orders so that LockLint can more accurately diagnose potential
deadlocks. What Sun Products Have Multithreading Capability?

LockLint knows that const data is read-only.

ATOM RSS1 RSS2