Depends on the drive and how often you're accessing the data. You can fetch keys from a memcached server by the millions per second. no disk device can do that yet. You can also write faster without wearing out the device.
and, fundamentally, the point of it being over the network is to avoid having to distribute both updates and invalidations to a pool of machines. On Sun, 30 Jul 2017, Awanish kumar gupta wrote: > Ok, I will ask to them but one basic question that have is "Since memcache is > distributed cache system, It try to get data from other server, So isn't > time to get data from other server's RAM will be more than to read from > current server's hard-disk". > I know there is no data on current server's hard disk but just curious to > know that will it be more or less. > > Really thanks in advance, > > On 23 July 2017 at 01:55, dormando <dorma...@rydia.net> wrote: > I thought there were people who worked on memcached at amazon? Can you > ask > them? > > If you want to truly understand it you'll have to go through the > sources, > unfortunately. In the github repo there're some files in doc/ that give > high level context to how the LRU works and so forth. > > There's some higher level information here: > https://github.com/memcached/memcached/wiki/UserInternals > > .. and I tend to leave some comments in the code. it's in pretty bad > need > of cleanups and can be hard to understand in spots. > > On Sat, 22 Jul 2017, Awanish kumar gupta wrote: > > > Hi team, > > Currently I am working in Amazon as a SDE. I want to know memcache at > deepest level as much as I can. I found this link > > (https://www.adayinthelifeof.nl/2011/02/06/memcache-internals/) but > it was not at that much deep as I want. I want to know how it stored > key-value, like: > > simple hashing with channel. > > > > It will be really very great full if anyone solve my problem... > > > > Thanks, > > Awanish Kumar Gupta > > SDE at Amazon > > > > -- > > > > --- > > You received this message because you are subscribed to the Google > Groups "memcached" group. > > To unsubscribe from this group and stop receiving emails from it, > send an email to memcached+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > > > -- > > --- > You received this message because you are subscribed to a topic in the > Google Groups "memcached" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/memcached/B1mlqBQVqz0/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > memcached+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > > > > -- > Regards, > Awanish Kumar Gupta > B.Tech , Final Year > MNNIT Allahabad > Mobile No- +91-9648439756 > Email id:- awanish...@gmail.com > > -- > > --- > You received this message because you are subscribed to the Google Groups > "memcached" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to memcached+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > -- --- You received this message because you are subscribed to the Google Groups "memcached" group. To unsubscribe from this group and stop receiving emails from it, send an email to memcached+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
