Author: Rumi

Hasan T. Emdad is an ICT Solution Architect, Project Manager with 12+ year expertise in HW selection, OS expertise on Linux and MS, Supervising Application SW on Pearl, Java, dot Net and PHP with DB experience of MySQL, Postgre, MS and Oracle. He was involved in setting up several Turn Key ICT including Telecom based projects on various government and autonomous bodies in the country. Developed more than 50 applications running with different operators and users. Managing a team of more than 10 in-house engineers and developers and manages an outsourcing team experts and contributors. Very recently engineered Public Key Infrastructure (PKI) on Enterperise and Root Certifying Authority and deployed scalable Cloud Computing and Managed Services. He has post graduated (MBA) from University of Dhaka, Bangladesh.

আমাদের ডাঃ আতিউর রহমান

Rumi,

আমার জন্ম জামালপুর জেলার এক অজপাড়াগাঁয়ে। ১৪ কিলোমিটার দূরের শহরে যেতে হতো পায়ে হেঁটে বা সাইকেলে চড়ে। পুরো গ্রামের মধ্যে একমাত্র মেট্রিক পাস ছিলেন আমার চাচা মফিজউদ্দিন। আমার বাবা একজন অতি দরিদ্র ভূমিহীন কৃষক। আমরা পাঁচ ভাই, তিন বোন। কোনরকমে খেয়ে না খেয়ে দিন কাটতো আমাদের। আমার দাদার আর্থিক অবস্থা…

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PHP accelerator

Rumi,

Even though compilation is very fast, it still has a resource and time cost, especially on high-traffic servers. We can improve our response times by more than 5x by pre-caching our compiled opcode for direct execution later. There are a few PHP accelerators which accomplish this for us: Xcache Xcache…

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Install Memcache

Rumi,

By default PHP loads and saves sessions to disk. Disk storage has a few problems: 1. Slow IO: Reading from disk is one of the most expensive operations an application can perform, aside from reading across a network. 2. Scale: If we add a second server, neither machine will be…

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Understanding Linux CPU Load

Rumi,

You might be familiar with Linux load averages already. Load averages are the three numbers shown with the uptime and top commands – they look like this: load average: 0.09, 0.05, 0.01 Most people have an inkling of what the load averages mean: the three numbers represent averages over progressively…

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