kenneth b - Page 4 - Developer IT

sed whole word search and replace

- by ksuralta

Hi, How do I search and replace whole words using sed? Doing sed -i 's/[oldtext]/[newtext]/g' will also replace partial matches of [oldtext] which I don't want it to do. Thanks, Kenneth

Linux: How to measure actual memory usage of an application or process?

- by ksuralta

Hi, How do you measure the memory usage of an application or process in Linux? I've read here that "ps" is not an accurate tool to use for this intent. Thanks, Kenneth

Oracle Technology Network Architect Day: Denver Registration is now open. Sessions will cover IT Optimization and consolidation, cloud computing, the evolving role of enterprise IT, and more. (tags: oracle otn entarch event denver) SOA Suite Integration: Part 2: A basic BPEL process (The Shorten Spot) The latest post in Anthony's Shorten's series about SOA Suite integration with Oracle Utilities Application Framework. (tags: oracle otn soa bpel soasuite) ADF: How to create web service based ADF pages The first in promised series of three posts on the topic by Marianne Horsch. (tags: oracle soa webservices adf) David Butler: MDM Poised for Growth (Oracle Master Data Management) David says: "Businesses are talking about the need to fix master data before they can successfully move forward on SOA initiatives. And the growing demands for compliance continue to be a major driver." (tags: oracle otn mdm) Cloud governance is about more than security | The Pervasive Data Center - CNET News Legal and regulatory procedures, transparency, service levels, indemnification, and more are all part of a broader governance landscape that requires IT to work closely with business users. Read this blog post by Gordon Haff on The Pervasive Data Center. (tags: ping.fm) Senthilkumar Rajendran's Blog: Horizontal Scaling OBIEE 11g (tags: ping.fm) InfoQ: Searching Without Objectives Kenneth O. Stanley considers that innovation is stifled when we are strictly following a high goal, and we would progress more when we are inclined to discovery rather than following an objective. (tags: ping.fm) InfoQ: Brownfield Software - Industrial Waste or Business Fertilizer? Josh Graham addresses 10 myths related to working on legacy software, attempting to prove that one can make good use of legacy code without having to rewrite the entire thing. (tags: ping.fm)

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Refresh banshee album art

- by kmassada

I usually just copy ~/.config/banshee-1, and ~/.gconf/apps/banshee-1 when i'm moving from one computer to the other, if I keep the path of the folders. I get to keep my music library intact with the playlists I have. The problem with this method is that, the album arts doesn't carry over nicely. You'd have to play every album to get the album art to appear. Anyone knows a workaround, to maybe force banshee to reload all album art? I saw this, but not quite what my issue is? I tried banshee --fetch-artwork, but didn't work too well kenneth@dv7:~$ banshee --fetch-artwork [Warn 11:23:38.200] DBus support could not be started. Disabling for this sessi on. - System.Exception: Error 111: Connection refused (in `dbus-sharp') at DBus.Unix.UnixSocket.Connect (System.Byte[] remote_end) [0x00000] in <filen ame unknown>:0 at DBus.Transports.UnixNativeTransport.OpenAbstractUnix (System.String path) [ 0x00000] in <filename unknown>:0 at DBus.Transports.UnixNativeTransport.Open (System.String path, Boolean abstr act) [0x00000] in <filename unknown>:0 at DBus.Transports.UnixTransport.Open (DBus.AddressEntry entry) [0x00000] in < filename unknown>:0 at DBus.Transports.Transport.Create (DBus.AddressEntry entry) [0x00000] in <fi lename unknown>:0 at DBus.Connection.OpenPrivate (System.String address) [0x00000] in <filename unknown>:0 at DBus.Connection..ctor (System.String address) [0x00000] in <filename unknow n>:0 at DBus.Bus..ctor (System.String address) [0x00000] in <filename unknown>:0 at DBus.Bus.Open (System.String address) [0x00000] in <filename unknown>:0 at DBus.Bus.get_Session () [0x00000] in <filename unknown>:0 System.Exception: Unable to open the session message bus. (in `dbus-sharp') at DBus.Bus.get_Session () [0x00000] in <filename unknown>:0 at DBus.BusG.Init () [0x00000] in <filename unknown>:0 at Banshee.ServiceStack.DBusConnection.Connect (System.String serviceName, Boo lean init) [0x00000] in <filename unknown>:0 at Banshee.ServiceStack.DBusConnection.GrabDefaultName () [0x00000] in <filena me unknown>:0 [Info 11:23:38.286] Running Banshee 2.6.0: [Ubuntu 12.10 (linux-gnu, x86_64) @ 2012-10-11 06:19:37 UTC] (Banshee:21865): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Failed to connect to socket /tmp/dbus-vLxS6Riwsn: Connection refused [Warn 11:23:38.948] Could not read GConf key core.send_anonymous_usage_data - G Lib.GException: No D-BUS daemon running (in `gconf-sharp') at GConf.Client.Get (System.String key) [0x00000] in <filename unknown>:0 at Banshee.GnomeBackend.GConfConfigurationClient.TryGet[Boolean] (System.Strin g namespace, System.String key, System.Boolean& result) [0x00000] in <filename u nknown>:0 (Banshee:21865): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Failed to connect to socket /tmp/dbus-vLxS6Riwsn: Connection refused [Warn 11:23:39.239] Could not read GConf key core.send_anonymous_usage_data - G Lib.GException: No D-BUS daemon running (in `gconf-sharp') at GConf.Client.Get (System.String key) [0x00000] in <filename unknown>:0 at Banshee.GnomeBackend.GConfConfigurationClient.TryGet[Boolean] (System.Strin g namespace, System.String key, System.Boolean& result) [0x00000] in <filename u nknown>:0

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SPARC T4-4 Delivers World Record Performance on Oracle OLAP Perf Version 2 Benchmark

- by Brian

Oracle's SPARC T4-4 server delivered world record performance with subsecond response time on the Oracle OLAP Perf Version 2 benchmark using Oracle Database 11g Release 2 running on Oracle Solaris 11. The SPARC T4-4 server achieved throughput of 430,000 cube-queries/hour with an average response time of 0.85 seconds and the median response time of 0.43 seconds. This was achieved by using only 60% of the available CPU resources leaving plenty of headroom for future growth. The SPARC T4-4 server operated on an Oracle OLAP cube with a 4 billion row fact table of sales data containing 4 dimensions. This represents as many as 90 quintillion aggregate rows (90 followed by 18 zeros). Performance Landscape Oracle OLAP Perf Version 2 Benchmark 4 Billion Fact Table Rows System Queries/hour Users* Response Time (sec) Average Median SPARC T4-4 430,000 7,300 0.85 0.43 * Users - the supported number of users with a given think time of 60 seconds Configuration Summary and Results Hardware Configuration: SPARC T4-4 server with 4 x SPARC T4 processors, 3.0 GHz 1 TB memory Data Storage 1 x Sun Fire X4275 (using COMSTAR) 2 x Sun Storage F5100 Flash Array (each with 80 FMODs) Redo Storage 1 x Sun Fire X4275 (using COMSTAR with 8 HDD) Software Configuration: Oracle Solaris 11 11/11 Oracle Database 11g Release 2 (11.2.0.3) with Oracle OLAP option Benchmark Description The Oracle OLAP Perf Version 2 benchmark is a workload designed to demonstrate and stress the Oracle OLAP product's core features of fast query, fast update, and rich calculations on a multi-dimensional model to support enhanced Data Warehousing. The bulk of the benchmark entails running a number of concurrent users, each issuing typical multidimensional queries against an Oracle OLAP cube consisting of a number of years of sales data with fully pre-computed aggregations. The cube has four dimensions: time, product, customer, and channel. Each query user issues approximately 150 different queries. One query chain may ask for total sales in a particular region (e.g South America) for a particular time period (e.g. Q4 of 2010) followed by additional queries which drill down into sales for individual countries (e.g. Chile, Peru, etc.) with further queries drilling down into individual stores, etc. Another query chain may ask for yearly comparisons of total sales for some product category (e.g. major household appliances) and then issue further queries drilling down into particular products (e.g. refrigerators, stoves. etc.), particular regions, particular customers, etc. Results from version 2 of the benchmark are not comparable with version 1. The primary difference is the type of queries along with the query mix. Key Points and Best Practices Since typical BI users are often likely to issue similar queries, with different constants in the where clauses, setting the init.ora prameter "cursor_sharing" to "force" will provide for additional query throughput and a larger number of potential users. Except for this setting, together with making full use of available memory, out of the box performance for the OLAP Perf workload should provide results similar to what is reported here. For a given number of query users with zero think time, the main measured metrics are the average query response time, the median query response time, and the query throughput. A derived metric is the maximum number of users the system can support achieving the measured response time assuming some non-zero think time. The calculation of the maximum number of users follows from the well-known response-time law N = (rt + tt) * tp where rt is the average response time, tt is the think time and tp is the measured throughput. Setting tt to 60 seconds, rt to 0.85 seconds and tp to 119.44 queries/sec (430,000 queries/hour), the above formula shows that the T4-4 server will support 7,300 concurrent users with a think time of 60 seconds and an average response time of 0.85 seconds. For more information see chapter 3 from the book "Quantitative System Performance" cited below. -- See Also Quantitative System Performance Computer System Analysis Using Queueing Network Models Edward D. Lazowska, John Zahorjan, G. Scott Graham, Kenneth C. Sevcik external local Oracle Database 11g – Oracle OLAP oracle.com OTN SPARC T4-4 Server oracle.com OTN Oracle Solaris oracle.com OTN Oracle Database 11g Release 2 oracle.com OTN Disclosure Statement Copyright 2012, Oracle and/or its affiliates. All rights reserved. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. Results as of 11/2/2012.

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