Memcached implementation inquiry

marc at marc at
Sat Apr 21 12:10:17 UTC 2007

The exact story can be found here:

Lexington Luthor wrote:
> marc at wrote:
>> Hi,
>> mysql's scaling problem, especially on Linux, was recently found to 
>> be a sub-optimal implementation of malloc when it comes to threads.
>> If you preload google's malloc lib for mysqld you'll see a huge 
>> difference past ~1000 TPS allowing it to scale almost linearly as well.
>> Search for 'mysqld google malloc'
> At what kind of (OLTP) load does mysql begin to be hampered by lock 
> contention? Can you link to any thorough tests done to find this out? 
> Every test that I can find using google seems to be done by mysql 
> themselves or storage engine vendors, which are no doubt biased.
> Redards,
> LL

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