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Full Discussion: how to bind a process to a CPU
Top Forums UNIX for Advanced & Expert Users how to bind a process to a CPU Post 101184 by pressy on Monday 6th of March 2006 04:15:07 AM
Old 03-06-2006
Java
Quote:
When do you use pbind & when do you use resource manager?
well, pbind is a traditional unix/solaris tool which is, on my opinion, one of the basic tools which should come with an OS....

the resource management is a control layer which comes from sun. in solaris 8 you had to pay for it, since solaris9 it is included. the basic idea of resource management is allocate computing resources, such as processor time, monitor how the allocations are being used, then adjust the allocations as necessary, restrict access to a specific resource, offer resources to workloads on a preferential basis or isolate workloads from each another.... you could deny resources or prefer one application over another for a larger set of allocations than otherwise permitted or prevent an application from consuming resources indiscriminately.

a very nice implementation was done in solaris 10 and the solaris-containers. you can bind these virtual OS instances to processor sets and to a preconfigured value of memory. zone1 only works on CPU0 and CPU1 with 2G RAM, zone2 zone3 and zone4 have to share CPU2 - CPU7 and the rest of memory. one thing my costumers really like is the "fair scheduling" rule. e.g: every zone could have as much resources as my machine is able provide but if zone1 needs more power, the other instances "have to give" the resources back, controlled by the kernel, preconfigured by rule-sets, no interaction needed..... anyhow, you are able to change this allocation live. this could be very important e.g if one process hangs and eat up the whole CPUs or memory, no problem with RM....

just try it, it works great. i found a very nice tutorial with zones and resource management for solaris 10 from Brendan Gregg...

regards PRESSY
 

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LEARN ABOUT CENTOS

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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