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#!/bin/bash
# 一旦配列に入れるだけでもコストになっている。
# time { a=({000000..500000}); printf '%s\0' "${a[@]}"; } >/dev/null
# time { printf '%s\0' {000000..500000}; } >/dev/null
if ((_ble_bash>=50000)); then
a=({000000..500000})
else
a=({000000..050000})
fi
echo a:initialized
# ble-measure 'declare -p a > .tmp' # 100ms
function qprint1 {
printf '%s\n' "${a[@]@Q}"
}
function qprint1b {
printf '%q\n' "${a[@]}"
}
function qprint2 {
local i n=${#a[@]}
for ((i=0;i<n;i++)); do
echo "${a[i]@Q}"
done
}
#ble-measure 'qprint1 > .tmp' # 1573
#ble-measure 'qprint1b > .tmp' # 1285
#ble-measure 'qprint2 > .tmp' #2409
function eval1 {
eval "b=($(< .tmp))"
}
#ble-measure 'eval1' # 1073
#------------------------------------------------------------------------------
function zprint0 {
# bash-3.* では ^A, ^? が化けるので補正が必要
printf '%s\0' "${a[@]}" > .tmp
}
function zprint1 {
local i n=${#a[@]}
for ((i=0;i<n;i++)); do
printf '%s\0' "${a[i]}"
done
}
#ble-measure zprint0 # 954
#ble-measure 'zprint1 > .tmp' # 2303
function zmapfile1 {
mapfile -d '' b < .tmp
}
#ble-measure 'zmapfile1' # 1603
# ble-measure 'ble/util/writearray -d "" a > .tmp' # 883ms
# ble-measure 'ble/util/readarray -d "" b < .tmp' # 1636ms
# echo "a:${#a[@]} -> b:${#b[@]}"
#------------------------------------------------------------------------------
function save-nl1 {
printf '%s\n' "${a[@]}"
}
function save-nl2 {
local i n=${#a[@]}
for ((i=0;i<n;i++)); do
echo "${a[i]}"
done
}
function save-nl3 {
local i n=${#a[@]} B=$1
for ((i=0;i<n;i+=B)); do
printf '%s\n' "${a[@]:i:B}"
done
}
#ble-measure 'save-nl1 > .tmp' # 1129
#ble-measure 'save-nl2 > .tmp' # 2171
#ble-measure 'save-nl3 10 > .tmp' # -
#ble-measure 'save-nl3 100 > .tmp' # -
#ble-measure 'save-nl3 1000 > .tmp' # -
#ble-measure 'save-nl3 10000 > .tmp' # 13948
#ble-measure 'save-nl3 100000 > .tmp' # 3254
function load-nl1 {
mapfile -t b < .tmp
}
#ble-measure 'mapfile1' # 67
function save-nlfix1 {
local i n=${#a[@]} ret
for ((i=0;i<n;i++)); do
if [[ ${a[i]} == *$'\n'* ]]; then
ble/string#escape-for-bash-escape-string "${a[i]}"
echo "$ret"
echo "$i" >> .tmp-nlfix
else
echo "${a[i]}"
fi
done
}
function save-nlfix2 {
local i n=${#a[@]} v ret
for ((i=0;i<n;i++)); do
v=${a[i]}
if [[ $v == *$'\n'* ]]; then
ble/string#escape-for-bash-escape-string "$v"
echo "\$'$ret'"
echo "$i" >> .tmp-nlfix
else
echo "$v"
fi
done
}
function save-nlfix3 {
ble/util/writearray --nlfix a
}
#ble-measure 'save-nlfix1 > .tmp' # 3157
#ble-measure 'save-nlfix2 > .tmp' # 3119
#ble-measure 'save-nlfix3 > .tmp'
# 制御文字を含む時: 2382 (gawk), 1284 (nawk), 817 (mawk)
# 制御文字を含まない時: 2150 (gawk), 372 (nawk), 1350 (mawk)
#ble-measure 'save-nlfix3 > .tmp'
function load-nlfix1 {
mapfile -t b < .tmp
local ifix
for ifix in $(< .tmp-nlfix); do
eval "b[ifix]=${b[ifix]}"
done
}
#ble-measure 'load-nlfix1' # 83
ble-measure 'ble/util/writearray --nlfix a > .tmp' # 364ms (480ms bash-4.0)
ble-measure 'ble/util/readarray --nlfix b < .tmp' # 81ms (110ms bash-4.0)
echo "a:${#a[@]} -> b:${#b[@]}"
#------------------------------------------------------------------------------
# function ble/util/save-large-array {
# ble/util/writearray --nlfix > .tmp
# }
# function ble/util/load-large-array {
# ble/util/writearray --nlfix < .tmp
# }
a=() b=()
|
