Sign up for our Technology Newsletter 
Facebook Goes DRAM
Facebook has come up with a data cache which runs on flash memory instead of DRAM. Dubbed McDipper it saves money while still delivering higher performance than disk.
The system is a Facebook-built implementation of the popular memcached key-value store the only difference is that runs on flash memory rather than pricier DRAM. Memcached is the open-source key-value store that caches frequently accessed data in memory so applications can access and serve it faster than if it were stored on hard disks.
Facebook runs thousands of memcached servers to power its various applications. The only downside is that it is expensive. McDipper can handle working sets that had very large footprints but moderate to low request rates. It provides up to 20 times the capacity per server and still supports tens of thousands of operations per second.
According to Gigaom, Facebook has deployed McDipper for a handful of these workloads. This has reduced the total number of deployed servers in some pools by as much as 90 per cent while still delivering more than 90 per cent of get responses with sub-millisecond latencies.
Will HP Be Broken Up?
HP has been urged by investment bank UBS to break itself up in order to boost its share price.
After years of mismanagement, HP’s stock price is far lower than it was during the heady dotcom bubble days when it pulled off one of the biggest mergers in recent years by buying Compaq. Now the firm’s stock price languishes around the $14 mark, a figure that could top $20 if HP were to break itself up, according to UBS.
UBS analysts including Steven Milunovich reported the firm could “realise greater value” by splitting itself up. The analysts added that each separate division of HP is big enough to stand on its own, claiming, “HP’s units are not minnows but rather they are whales packed into the same pond.”
HP spokesman Michael Thacker claimed the firm’s customers want a big HP, effectively allowing them to have one supplier for their IT needs, a message the firm has been playing up for a number of years now. Thacker said, “No matter how you look at it we are confident that HP is stronger together than apart. The company’s operations across business units are deeply integrated and our customers have told us that they want One HP.”