Posts Tagged ‘Linux’

Linux ram Cache/buffer is taking over my memory can i stop that?

perf – Performance analysis tools for Linux

Form in “perf” in a terminal to get set up recommendations manpages.ubuntu.com DESCRIPTION Efficiency counters for Linux are are a new kernel-based subsystem that supply a framework for all points functionality analysis. It addresses hardware stage (CPU/PMU, Performance Monitoring Device) capabilities and software program features (computer software counters, tracepoints) as effectively.

How to Reset SMC macbook and macbook professional – Method Conduite Controller
Video Score: 3 / five

GL?s Linux Drivers and Application Development Tool Kit

GL’s Linux Motorists and Software Advancement Device Kit
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GL’s Universal T1 E1 Card and OC 3 OC 12 STM 1 STM 4 Card

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Gaithersburg, Maryland (PRWEB) November 05, 2011

GL Communications Inc. a leader in supplying Computer-based mostly examination, examination and simulation merchandise and consulting providers to the worldwide telecommunications sector, conveyed these days the availability of Linux Driver Assist for its Universal T1 E1 and OC-three/12 STM-one/4 Cards. Speaking to media individuals, Mr. Vijay Kulkarni, CEO of the organization explained,” The Web as we know it these days would not exist without having “open up supply software”, a model based on collaborative software improvement accessible cost-free to any individual. Its roots are in academia, colleges, and universities where open and free of charge exchange of ideas (and computer software) is a way of existence. The Web is driven by open up source, like Linux, Apache, TCP/IP, DNS, PHP, the record is endless.”

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He added, “Linux is the shining star of open source. So GL is building Linux drivers and APIs for our flagship items! Considering that our cards have distinctive attributes unavailable with other industry normal cards, customers can now develop personalized applications quicker and more affordable. At present, we have Linux motorists and APIs for our T1 E1 Universal and OC-three/twelve STM-one/4 Cards. All of the features of the hardware is exposed by way of the API. In addition, numerous software program based mostly functions are obtainable that ease even the most intricate software advancement.”

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Facts of Linux APIs and Motorists

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·Having ported our “GLComIFC” from Windows to Linux, the driver and API expose all capabilities of the hardware for equally T1 E1 and OC-3/12 STM-one/4 Cards &#thirteen

·An API Toolkit gives examples how to access the Raw Knowledge, Set / Reset Registers, Set Clocking Modes, Get / Set Alarms, Loopbacks

·For T1 E1 Universal Card, examples are supplied for: &#thirteen

·Implementing HDLC on simple timeslots or multitimeslot streams, ATM cell delineation and considerably a lot more &#thirteen

·Implementing Delay and BERT, Report/Playback on sub-timeslot, timeslot, and multi-timeslot streams

·Working with multiple cards in a solitary Pc, Implementation techniques for Frame Relay in software package, Accessing Pulse Mask and Jitter measurements, Dropping / Incorporating VF Input and VF Output &#thirteen

·Configuring particular cabling alternatives like Cross Port Thru, Cross Port Transmit, Bridge, and Monitor

·Access to Error Insertion Logic, Access to Tx Frequency Deviation Logic

·For OC-3/twelve STM-1/4 (LightSpeed1000™ Card), examples are offered for: &#thirteen

·Works on Win32 and Linux with C/C++ interfaces (VS2005 and above for windows)

·Record / Playback at Wirespeed at (Gigabits/sec)!

·Scrambling / Non-scrambled payload administration in ATM / POS / Clear modes with Inner and Recovered Clock management&#thirteen

·Loopback Line / Diagnostic / PL3, Rx Terminate / Keep track of help, ATM Idle Cell Handle, Hardware Information Filters

·Hardware and Software package Based Efficiency Counters, SFP Details, Alarm Monitoring (OOF, LOF, LOS, AIS, RDI, APSBF ) &#thirteen

·ATM Error Counters ( BIP, REI, HEC ), POS Error Counters (BIP, REI, Rx/Tx abort, Min/Max size)

·Hardware BERT, POS FCS 32-bit, 16-little bit and no-FCS assist, POS Hardware Appending / Stripping FCS, Overhead Byte Configuration, Part and Line Error Counts, Insert HCS Glitches

About GL Communications Inc.,

Launched in 1986, GL Communications Inc. is a top provider of exam, monitoring, and evaluation equipment for TDM, Wireless, IP and VoIP networks. Unlike standard check equipment, GL’s check platforms give visualization, seize, storage, and convenient attributes like portability, remotability, and scripting.

GL’s TDM Examination &amp Emulation line of goods contains T1, E1, T3, E3, OC-three, OC-12, STM-1, STM-four, analog four-wire, and analog two-wire interface cards, external transportable pods, and total method remedies. Abilities incorporate voiceband visitors examination and emulation across all site visitors types (voice, digits, tones, fax, modem), all protocols (ISDN, SS7, GR-303, Body Relay, HDLC, V5.X, ATM, GSM, GPRS, LTE, and so on.), and with capacities up to thousands of channels. Our most recent merchandise give astonishing ability and capture capability up to and which includes gigabit speeds.

GL’s VoIP and IP goods create / analyze hundreds of calls and targeted traffic simultaneously with targeted traffic kinds such as frames, packets, voice files, digits, video, tones, sounds, and fax. Virtually all codecs are supported like G.711, G.729, AMR, EVRC-A,B,Do, GSM, iSAC, and several much more. Added attributes include visual examination, real-time listening, and recording. The item line also contains Ethernet / IP Screening capability that simulates and checks body transportation and throughput parameters of Ethernet and IP networks, including delay, glitches and other impairments.

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GL’s Voice Good quality Screening (VQT) product line complements all of GL’s items. Utilizing ITU-common algorithms (PAMS, PSQM, and PESQ), GL’s VQT gives a widely accepted solution for assessing voice good quality in the telecom market. Voice High quality Testing across numerous networks (T1, E1, T3, E3, OC-three, OC-twelve, VoIP, Wireless, and Landline) are all offered.

GL’s Wireless Items execute protocol analysis and voice good quality assessment on GSM, CDMA, UMTS, and LTE networks. Connections can be manufactured to any wireless telephone with automated get in touch with manage, GPS mapping and real-time sign measurements.

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GL’s Echo Canceller screening remedies give the broadest assortment of simulation and evaluation, such as line and acoustic echo. GL’s compliance screening per G.168. G.167 and P.340 across TDM, IP, VoIP and Wireless networks is extensively accepted in the sector.

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GL’s wireless VQT remedies assist evaluating impairments to voice quality this sort of as inadequate cellular phone high quality, voice compression and decompression algorithms, delay, reduction and achieve in speech amounts, sounds, acoustic and landline echo, and other distortions are very easily assessed and correctly measured.

GL’s Handheld information testers can check a extensive variety of communications amenities and equipment like T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU, DSUs, T1 CSUs, DTUs, NTUs and TIUs and far more. The testers provide usefulness, financial system, and portability for nearly any interface, which includes RS232, RS-422, RS-530, X.21, T1, E1, T3, E3, and many others.

GL’s Network Surveillance and Monitoring products include Probes for TDM, IP, VoIP, ATM, and Wireless networks. An open specifications dependent approach provides a scalable, function wealthy, actual-time accessibility to network qualities. Centralized or dispersed accessibility, successful transportation and database loading let compatibility with 3rd celebration and standards based mostly monitoring programs.

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©Copyright 1997-

, Vocus PRW Holdings, LLC.
Vocus, PRWeb, and Publicity Wire are trademarks or registered trademarks of Vocus, Inc. or Vocus PRW Holdings, LLC.

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What do these terms mean? Information Technology terms found in a Job posting?

Linux CLI performance monitoring tools

A few CLI resources to help keep track of your pcs overall performance.

webhole.net . Is all that text from earlier instructions bothering you? use distinct to get rid of it.
Video Rating: four / five

which is the best Linux operating system?

LiveTime Software support for Red Hat Enterprise Linux 3

LiveTime Software support for Red Hat Enterprise Linux 3

(PRWEB) March 15, 2004

NEWPORT BEACH, California (PRWEB) March 15, 2004 — LiveTime Software, a leading provider of J2EE based Help Desk and Support Desk software, today announced it has joined the Red Hat (Nasdaq: RHAT) Ready Program. Building upon the relationship, LiveTime Software also announced the immediate availability of LiveTime Support 2.5 for Red Hat Enterprise Linux 3.

“We are pleased to join the Red Hat Ready Program,” said Dr. Darren Williams, CEO of LiveTime Software. “With many of our customers now deploying their critical business applications across Red Hat Enterprise Linux, it is re-assuring for them to know that LiveTime applications will deploy right out of the box, having already been fully tested and certified against a wide range of hardware platforms.”

“It was a business imperative that our Support Desk run reliably and cost effectively for our large number of internal and remote analysts and customers,” said Daryl Jones, IT Network Analyst at Barrie Hydro Inc. “Testing revealed that LiveTime Support Desk deployed over Red Hat Enterprise Linux 3 consistently outperformed other web-based support applications.”

“At LiveTime Software, our mission is to deliver the most efficient and powerful Support / Help Desk application, leveraging best of breed technology to better serve our customers,” said Keith Woodward, Director, World Wide Marketing Programs. “With Red Hat’s focus on performance, scalability, security and wide IT hardware platform support, we believe that this platform is an excellent choice for our customers.”

About LiveTime Software

Founded in 1999, LiveTime Software is a privately held firm leading the integration of Business Activity Monitoring (BAM) technology into web-based Help desk and support software. Currently headquartered in Newport Beach, California, LiveTime Software has offices in Australia and the United Kingdom and is expanding throughout North America and Europe.

For more information visit http://www.livetime.com

Media Relations contacts:

Europe: Mike Fellows mike.fellows@livetime.com

    Suite 5, 107 Promenade,Cheltenham, Glos GL50 1 NW, United Kingdom

    Phone: +44 (0) 1242 580090, Fax: +44 (0) 1452 700150

USA: Bill Gram Reefer reefer@worldviewpr.com

    Suite 255, 4100 Newport Place, Newport Beach, CA 92660, USA

    Phone: +1-949-752 1660, Fax: +1-949-752 1649

LiveTime and the LiveTime logo are registered trademarks of LiveTime Software, Inc. Other company and product names may be trademarks of the respective companies with which they are associated.

©Copyright 1997-

, Vocus PRW Holdings, LLC.
Vocus, PRWeb, and Publicity Wire are trademarks or registered trademarks of Vocus, Inc. or Vocus PRW Holdings, LLC.

Related Performance Monitoring Linux Red Hat Press Releases

Monitoring and Tuning Performance on Linux

On a modern stand-alone system, Linux is pretty quick, and if it isn’t, there’s something wrong — something that is up to the system administrator to fix. You might have a number of people using the same fileserver,
mail server, or other shared machine, in which small improvements in system performance can mean a lot.

System tuning is an ongoing process carried by a variety of  monitoringtools. Some performance decisions are made at installation time, while others are added or configured later.

Proper monitoring can detect a misbehaving application that might be consuming more system resources than it should or failing to exit completely on close. Through the use of system performance tools you can determine when hardware — such as memory, added storage, or even something as elaborate as a hardware RAID — should be upgraded for more cost-effective use of a machine in the enterprise. Possibly most important, careful system monitoring give you an early idea when a system component is showing early signs offailure, so that any potential downtime can be minimized.

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Careful system monitoring and built-in configurability of Linux allows you to squeeze the best possible performance from your existing equipment, from customizing video drivers to applying special kernel patches to simply turning off unneeded services to free memory and processor cycles.

All of these points about taking care of your servers and making sure silly things don’t cause them to crash  from a long-time UNIX philosophy: Uptime is good. More uptime is better.

The UNIX (Linux) uptime command tells the user how long the system has been running since its last boot, how many users are currently logged in, and how much load the system is experiencing. The last two are useful measures that are necessary for day-to-day system health and long-term planning. (For example, the server load has been staying high lately, so may be it’s time to buy a faster/bigger/better server.)

But the all-important number is how long the server has been running since its last reboot. Long uptimes are a sign of proper care, maintenance, and, from a practical standpoint, system stability. You’ll often find UNIX administrators boasting about their server’s uptimes the way you hear car buffs boast about horsepower. This is also why you’ll hear UNIX administrators cursing at system changes (regardless of operating system) that require a reboot to take effect, even though applying the latest kernel security patch may justify that reboot. You may deny caring about it now, but in six months you’ll probably scream at anyone who reboots the system unnecessarily. Don’t bother trying to explain this phenomenon to a nonadmin, because they’ll just look at you oddly. You’ll just know in your heart that your uptime is better than theirs.

For more articles and learning Linux system administration visit http://www.linuxadministrationguide.com

Find More Performance Monitoring Linux Tools Articles

Computer system performance monitoring tools for Linux?

Question by Dave: Computer system performance monitoring tools for Linux?
Does anyone know of any downloadable tools or software packages that can monitor the system performance of a computer running a Linux operating system. I’m using Linux Mint 8?

Many thanks.

Best answer:

Answer by comtech391
Have you use Synaptic the program management program to see what is may already have that can be installed. Downloading programs or files from the internet, may require the use of the terminal console commands, which is not that easy for someone new to Linux.

Add your own answer in the comments!

Linux ram Cache/buffer is taking over my memory can i stop that?

Question by lillevo21: Linux ram Cache/buffer is taking over my memory can i stop that?
I have the latest enterprise version of Redhat. I also have a test lab with the latest version of CentOS.

When i do “top” or “free” used memory is consistantly high as well as cached memory. I realize that linux caches memory for performance, but i have more then enough ram to do what i need to.

This is not a performance server/ws. So caching/buffering swapping is not necessary. I wonder if anybody knows a way that i can disable the cache??? Limit it ?

What happens is i am monitoring my machines /net-snmp and “used real memory” is always in the 90′s which triggers alerts. Reality is , the memory really isnt used its cached. This is becoming very fustrating since ive done alot of research to no avail.

Any help is better then non. Thanks.

Best answer:

Answer by philbertpheinstein
Maybe you can just install more memory..

Give your answer to this question below!