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start_server {
tags {"sort"}
overrides {
"list-max-ziplist-value" 16
"list-max-ziplist-entries" 32
"set-max-intset-entries" 32
}
} {
proc create_random_dataset {num cmd} {
set tosort {}
set result {}
array set seenrand {}
r del tosort
for {set i 0} {$i < $num} {incr i} {
# Make sure all the weights are different because
# Redis does not use a stable sort but Tcl does.
while 1 {
randpath {
set rint [expr int(rand()*1000000)]
} {
set rint [expr rand()]
}
if {![info exists seenrand($rint)]} break
}
set seenrand($rint) x
r $cmd tosort $i
r set weight_$i $rint
r hset wobj_$i weight $rint
lappend tosort [list $i $rint]
}
set sorted [lsort -index 1 -real $tosort]
for {set i 0} {$i < $num} {incr i} {
lappend result [lindex $sorted $i 0]
}
set _ $result
}
foreach {num cmd enc title} {
16 lpush ziplist "Ziplist"
1000 lpush linkedlist "Linked list"
10000 lpush linkedlist "Big Linked list"
16 sadd intset "Intset"
1000 sadd hashtable "Hash table"
10000 sadd hashtable "Big Hash table"
} {
set result [create_random_dataset $num $cmd]
assert_encoding $enc tosort
test "$title: SORT BY key" {
assert_equal $result [r sort tosort BY weight_*]
}
test "$title: SORT BY hash field" {
assert_equal $result [r sort tosort BY wobj_*->weight]
}
}
set result [create_random_dataset 16 lpush]
test "SORT GET #" {
assert_equal [lsort -integer $result] [r sort tosort GET #]
}
test "SORT GET <const>" {
r del foo
set res [r sort tosort GET foo]
assert_equal 16 [llength $res]
foreach item $res { assert_equal {} $item }
}
test "SORT GET (key and hash) with sanity check" {
set l1 [r sort tosort GET # GET weight_*]
set l2 [r sort tosort GET # GET wobj_*->weight]
foreach {id1 w1} $l1 {id2 w2} $l2 {
assert_equal $id1 $id2
assert_equal $w1 [r get weight_$id1]
assert_equal $w2 [r get weight_$id1]
}
}
test "SORT BY key STORE" {
r sort tosort BY weight_* store sort-res
assert_equal $result [r lrange sort-res 0 -1]
assert_equal 16 [r llen sort-res]
assert_encoding ziplist sort-res
}
test "SORT BY hash field STORE" {
r sort tosort BY wobj_*->weight store sort-res
assert_equal $result [r lrange sort-res 0 -1]
assert_equal 16 [r llen sort-res]
assert_encoding ziplist sort-res
}
test "SORT DESC" {
assert_equal [lsort -decreasing -integer $result] [r sort tosort DESC]
}
test "SORT ALPHA against integer encoded strings" {
r del mylist
r lpush mylist 2
r lpush mylist 1
r lpush mylist 3
r lpush mylist 10
r sort mylist alpha
} {1 10 2 3}
test "SORT sorted set" {
r del zset
r zadd zset 1 a
r zadd zset 5 b
r zadd zset 2 c
r zadd zset 10 d
r zadd zset 3 e
r sort zset alpha desc
} {e d c b a}
test "SORT sorted set: +inf and -inf handling" {
r del zset
r zadd zset -100 a
r zadd zset 200 b
r zadd zset -300 c
r zadd zset 1000000 d
r zadd zset +inf max
r zadd zset -inf min
r zrange zset 0 -1
} {min c a b d max}
test "SORT regression for issue #19, sorting floats" {
r flushdb
set floats {1.1 5.10 3.10 7.44 2.1 5.75 6.12 0.25 1.15}
foreach x $floats {
r lpush mylist $x
}
assert_equal [lsort -real $floats] [r sort mylist]
}
tags {"slow"} {
set num 100
set res [create_random_dataset $num lpush]
test "SORT speed, $num element list BY key, 100 times" {
set start [clock clicks -milliseconds]
for {set i 0} {$i < 100} {incr i} {
set sorted [r sort tosort BY weight_* LIMIT 0 10]
}
set elapsed [expr [clock clicks -milliseconds]-$start]
puts -nonewline "\n Average time to sort: [expr double($elapsed)/100] milliseconds "
flush stdout
}
test "SORT speed, $num element list BY hash field, 100 times" {
set start [clock clicks -milliseconds]
for {set i 0} {$i < 100} {incr i} {
set sorted [r sort tosort BY wobj_*->weight LIMIT 0 10]
}
set elapsed [expr [clock clicks -milliseconds]-$start]
puts -nonewline "\n Average time to sort: [expr double($elapsed)/100] milliseconds "
flush stdout
}
test "SORT speed, $num element list directly, 100 times" {
set start [clock clicks -milliseconds]
for {set i 0} {$i < 100} {incr i} {
set sorted [r sort tosort LIMIT 0 10]
}
set elapsed [expr [clock clicks -milliseconds]-$start]
puts -nonewline "\n Average time to sort: [expr double($elapsed)/100] milliseconds "
flush stdout
}
test "SORT speed, $num element list BY <const>, 100 times" {
set start [clock clicks -milliseconds]
for {set i 0} {$i < 100} {incr i} {
set sorted [r sort tosort BY nokey LIMIT 0 10]
}
set elapsed [expr [clock clicks -milliseconds]-$start]
puts -nonewline "\n Average time to sort: [expr double($elapsed)/100] milliseconds "
flush stdout
}
}
}
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