I have a virtual machine with 64 vCPUs and 256GB of memory. Recently, I decided to perform some stress tests on the website that is running on this virtual machine. The entire VM is only for this website. The first…
I have a multi-join query that targeting the hospital's chart database. this takes 5~10 seconds or more. This is the visual expain using mysql workbench. The query is below. select sc.CLIENT_ID as 'guardianId', sp.PET_ID as 'patientId', sp.NAME as 'petName' ,…
I am a javascript beginner, I have a multiple choice exam project where I want to get response data for each selected answer. I can do it by typing the code manually but I want to make the code efficient…
Case Inputs Mysql Version on both Prod and test: 5.7 Query: SELECT t1.id t1.accountId, t2.col1 FROM table1 t1 INNER JOIN table2 t2 ON (t2.Id = t1.id) WHERE 1 AND MOD(t1.id, 20) = 0 AND t1.col1 = 0 AND t1.col2 <=…
Recently I have been doing some tests with C# multi-threaded performance, below are the tests and the result: Note that all the tests run three times for an array with the size of 1000000, the first run on the main…
I have replaced my old home server (i3-6100, 51W TDP, 3,7GHz, SSE4.1, SSE4.2, AVX2) with a thin client (Celeron J4105, 10W TDP, 1.5/2.5GHz turbo, SSE4.2). Can Apache make use of CPU AVX instructions?
I use the C++ connector for MySQL and the X dev API code. On my test server (my machine), doing a single insert in loop is pretty slow (about 1000 per second) on a basic table with a few columns.…
i don't know what is the problem with my android studio i am trying to add an image from image view ..it is showing in design tab but not in emulator ...i am a newbie ..please help me fix it…
i have a restful project when make stress test with maximum 500 users the route return status:error i tried to optimize laravel query and decrease the amount of data which received at every request but the result of performance not…
I have a series of queries which are now not paralellised, the java code looks something like this: private List<EntityA> cacheA = Lists.newArrayList; private List<EntityB> cacheB = Lists.newArrayList; private List<EntityC> cacheC = Lists.newArrayList; // ... public class Cache { private…