blog of a linux enthusiast
Check out my recent wiki page on how to schedule snapshot backups on AWS using Lambda.
https://www.headdesk.me/Lambda
Lambda is much more powerful then this. Using it together with S3 / SNS / SQS / etc allow deployment of business applications / workflows truly on cloud.
Ever feel your browser always perform slower on Linux or taking more cpu then other OS platforms? Well I did and as it turns out, I can manually enable GPU acceleration. Check out the instructions in this link.
Do you have it enabled? Quickly check by opening chrome://gpu
To enable it, see instructions on http://www.webupd8.org/2014/01/enable-hardware-acceleration-in-chrome.html
To see GPU’s utilization, radeontop works on AMD chips. I realise I didn’t have hardware acceleration enabled for the past 3 years and once enabled, I could’ve help myself from getting a faster display card. Here is a quick comparison using fishgl.com
Before upgrading, I was using HD5450
Upgraded to R7 250 and it is so much faster! Getting 60FPS and radeontop tells me GPU is only 50% used.
That should help with compiz.
And because GPU is now more powerful, the chip is actually 5 degrees cooler than before.
Update:
On Ubuntu/Chrome 84, I turned on vulkan acceleration. Go to chrome://flags/#enable-accelerated-videom toggle the vulkan option. Restart the browser and then check its status in chrome://gpu/
Azure hard-codes disk size and it cannot be changed during deployment. Resizing root disk on Azure is often a required task. Here is how a root disk can be resized. I learned this the hard way.
Ever since I got my Breville 870XL, I’ve read numerous comments about how important it is to get fresh beans. Out of laziness, I usually go to the supermarket to get my coffee. There is a self-service counter in the store where I can pour the amount of beans I desire. The beans were prepared by Tsit Wing, a reputable coffee and tea company in Hong Kong who supplies products to many local restaurants.
Their coffee taste good, and there is about 12 different blends to choose from. I like them better than the pre-packaged ones. They taste better and they’re less expensive. There are only 3 supermarkets in Hong Kong with such a section and I was darn lucky to live around one of them.
A few weeks ago, I learned about a local coffee processing shop called Avid Coffee. They roast beans on request. It’s so nice to meet coffee enthusiast who puts quality first. Continue reading “Freshness of coffee beans – huge difference?”
It is possible to use CloudWatch to monitor your disk and memory usage. There are very good information on AWS – http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/mon-scripts-perl.html
For the impatient, here is how to get it done.
Continue reading “Let CloudWatch monitor your disk and memory utilisation”
On Linux, it is possible to power off a USB device using command line. It’s perfect for my USB backup drive. I can power it off after backup every night, and power it on before the job starts. This saves power, reduce heat, and more importantly, prevent accidental or unexpected changes as the device is completely offline.
On Linux, it is possible to power off a USB device using command line. It’s perfect for my USB backup drive. I can power it off after backup every night, and power it on before the job starts. This saves power, reduce heat, and more importantly, prevent accidental or unexpected changes as the device is completely offline.
Continue reading “Backup to USB drive and power it off when not in use”
Redhat has provided a couple of excellent articles describing the upcoming leap second as well as how to handle it. Here, I want to demonstrate the behavior of a server not running NTP.
Redhat has provided a couple of excellent articles describing the upcoming leap second as well as how to handle it. Here, I want to demonstrate the behavior of a server not running NTP.
Continue reading “Leap second 2015-Jul-1”
Adding a bootable ISO image to grub will be very useful for recovering Linux systems. Here we add the systemrescuecd iso to grub2 on Ubuntu 15.04. It’s really easy and I recommend adding it to every Linux systems!
This will be very useful for recovering Linux systems. Here we add the systemrescuecd iso to grub2 on Ubuntu 15.04. It’s really easy and I recommend adding it to every Linux systems! Continue reading “Adding SystemRescueCD to grub2”
Check out my latest wiki post on installing Oracle 12c Release 1 on Linux.
Check out my latest wiki post on installing Oracle 12c Release 1 on Linux. I ran into problem creating database when I used RHEL6. Was unable to fix it even after researching on metalink. I redo the installation on OEL6 and everything worked as expected.
I recently attended a 4-day training on Microsoft’s cloud platform. Quickly I learned why it should not be used if you’re serious about your business. Continue reading “Why not Azure”
