©2015 -
Blog
This blog page is a place for me to discuss about other things that gave me interest and the experiences that I had encountered.
The articles on this page are solely my expression of my own opinion and I hope you’ll find my blogs insightful and helpful.
Have fun and enjoy.
SSD And Flash Drive TRIM
Upgrading The Macbook Pro
Recently, I have been involved on projects related to Big Data covering Hadoop and NoSQL implementations. It has come to my attention when one of the NoSQL vendors -
So, here we go…
I finally came to a point that my hard drive is no longer going to meet my needs both on speed and disk space. I am a power user on virtualization where I ran simultaneous OS (a mix of Linux, Solaris UNIX, Windows Server 2012) to test various software and configurations. Running these virtual instances can easily consume my 16gb RAM and at times it would have some heavy swapping which in turn results to slow performance of the system. I thought that it is now time for an SSD upgrade.
Resolving Macbook Pro Bootup Problem With Question Mark Folder Symbol
.. My 2011 Macbook Pro A1286 has been around for 6 years and still going. It is my main workhorse with many successful projects that has gone through its powerhouse. In other words this is my "Lucky Workstation". I took great care of it and made several upgrades in keeping it at par with the "non-
Then after a month of use, suddenly my loyal Macbook won't boot anymore. The dreaded Question Mark appears at boot up time. At first I thought my new SSD got toast. But when I boot at USB, there are times that it sees the SSD and I can run a volume check to see if there were corruption on the file system but everything is ok. And the weird thing about this is that sometimes the SSD could not be detected. So, I thought this could be an NVRAM issue and I went on to reset it. And that made it worse as the boot-
Back in early 2016, I was able to get a hand on the actual SPARC M7 processor (see table photo) during one of the workshops.
It was the most advanced processor I've known at that time.
Key features that stands out to me -
- 4.133 GHz, 32-
core SPARC v9 group into 8 core- clusters. - 4 hCPU threads per core for a maximum 256 hCPU threads.
- Multi-
level on- chip cache: - 2 MB L2 Instruction Cache
- 4 MB L2 Data Cache
- 64 MB L3 Cache partition by core-
clusters - Built-
in hardware encryption accelerators for transparent data encryption; reducing performance overhead to near- zero. - Encrypted memory with encryption key changes in every memory block freed.
- SQL acceleration
- 20nm die process
In other words, this processor beats the best of Intel Xeon by a great distance.
