redis_study/tests/unit/lazyfree.tcl
2020-09-05 12:01:22 +08:00

40 lines
1.2 KiB
Tcl

start_server {tags {"lazyfree"}} {
test "UNLINK can reclaim memory in background" {
set orig_mem [s used_memory]
set args {}
for {set i 0} {$i < 100000} {incr i} {
lappend args $i
}
r sadd myset {*}$args
assert {[r scard myset] == 100000}
set peak_mem [s used_memory]
assert {[r unlink myset] == 1}
assert {$peak_mem > $orig_mem+1000000}
wait_for_condition 50 100 {
[s used_memory] < $peak_mem &&
[s used_memory] < $orig_mem*2
} else {
fail "Memory is not reclaimed by UNLINK"
}
}
test "FLUSHDB ASYNC can reclaim memory in background" {
set orig_mem [s used_memory]
set args {}
for {set i 0} {$i < 100000} {incr i} {
lappend args $i
}
r sadd myset {*}$args
assert {[r scard myset] == 100000}
set peak_mem [s used_memory]
r flushdb async
assert {$peak_mem > $orig_mem+1000000}
wait_for_condition 50 100 {
[s used_memory] < $peak_mem &&
[s used_memory] < $orig_mem*2
} else {
fail "Memory is not reclaimed by FLUSHDB ASYNC"
}
}
}