Before the change.

threads.search=170
threads.category=50
threads.detail=34
threads.refine=6
threads.cart=8
threads.other=0

test.duration=5000
test.ramp_up=1500
test.startup_delay=0

After the chnage

threads.search=130
threads.category=24
threads.detail=45
threads.refine=9
threads.cart=21
threads.other=0

test.duration=5000
test.ramp_up=1000
test.startup_delay=0

Last working test

threads.search=115
threads.category=20
threads.detail=45
threads.refine=9
threads.cart=21
threads.other=0

test.duration=5000
test.ramp_up=1000
test.startup_delay=0