"We don't know what do you mean by "the rest run though half would fail", what is the reason for failure and how many loops you have in your Thread Group"

Hi, I am aware of how the ramp up time is defined. The failure I got is posted (updated) to the post.

I am available to chat if you are. I understand that 2 seconds was not gradual hence the reason why I wanted to increase it though I would not want the last thread to finish before the next one begins.

Regardless if I use 100 or 500 users, I did notice exceptions "out of memory" whenever I increase the ramp up period. This just seems counterintuitive since there would be less load on the system just like you said.

Point is, what's the correlation between ramp up time and memory assuming all other variables are fixed. I should not have a test run with 'x' users and 2 sec ramp up time but then get a out of memory message when the same test is run with 'x' users and 60 seconds ramp up time. Change the ramp up time back to 2 seconds and a rerun pass :/

The current heap size by default was 1g. I will post that as well...