maria-discuss team mailing list archive

[Gordan Bobic <gordan.bobic@xxxxxxxxx>]

It's called "marketing". They will pick a specific case and then
pretend that somehow it can solve generalised O(n) problems in
O(log(n)) time.

On Sun, May 22, 2022 at 3:14 PM NgTech LTD <ngtech1ltd@xxxxxxxxx> wrote:
>
> Thanks!
> I assumed so and was wondering how exactly Oracle claimed that the in-memory DB makes the speed fast compared between in memory to on disk and without indexes.
> What the demo shows is that a DB in memory can be fast and so fast that you wouldn't need indexes if and only if I understood right.
>
> Can you abd others please try to verify my assumption and clear out my doubts?
>
> Thanks,
> Eliezer
>
> בתאריך יום א׳, 22 במאי 2022, 15:07, מאת Gordan Bobic ‏<gordan.bobic@xxxxxxxxx>:
>>
>> If your buffer pool is big enough to store the entire data set, then
>> there is no need to use any kind of in-memory database engine, the
>> buffer pool will end up caching everything (once it is warmed up).
>> For faster writes if you don't particularly care about ACID
>> compliance, you can disable InnoDB transaction log flushing by setting
>> innodb_flush_log_at_trx_commit=0. You will lose transaction if there
>> is a dirty shutdown, but it will largely bypass any disk write I/O
>> bottleneck.
>>
>> Over and above that, the usual performance tuning applies - make sure
>> your queries are well written and well indexed. In most cases that
>> makes far more difference than keeping all of your data in memory.
>>
>> On Sun, May 22, 2022 at 3:01 PM Eliezer Croitoru <ngtech1ltd@xxxxxxxxx> wrote:
>> >
>> > I have seen the next blog post which had a video at 2014:
>> >
>> > https://blogs.oracle.com/pcoe/post/the-future-of-the-database-begins
>> >
>> >
>> >
>> > The demo video was removed from YouTube for some reason but I had a copy of it at:
>> >
>> > https://cloud1.ngtech.co.il/static/oracle/Oracle%20Database%20In-Memory%20Powering%20the%20Real-Time%20Enterprise%20.mp4
>> >
>> >
>> >
>> > I am not a MariaDB or MySQL or DB in general expert and was wondering if there is something these days in MariaDB that can be used
>> > in comparison to what Oracle DB demo shows?
>> >
>> >
>> >
>> > I have used LevelDB as a backend in a customized DB and it worked very very fast and it is great.
>> > With batches it works even faster but in general it works faster then standard MariaDB setups I have implemented.
>> >
>> > So what are the options?
>> >
>> > I have millions of values and I would like to be able to insert and select as fast as possible on a single DB Server.
>> >
>> > Currently I am using a Caching tier with a specific TTL to lower the stress off the DB, but, is I possible to make the DB
>> > Faster like maybe with some writeback (leaving aside fault tolerance for speed).
>> >
>> >
>> >
>> > Thanks,
>> >
>> > Eliezer
>> >
>> >
>> >
>> > ----
>> >
>> > Eliezer Croitoru
>> >
>> > NgTech, Tech Support
>> >
>> > Mobile: +972-5-28704261
>> >
>> > Email: ngtech1ltd@xxxxxxxxx
>> >
>> >
>> >
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