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Make BEADM LIST several times faster.

This commit is contained in:
Slawomir Wojciech Wojtczak (vermaden) 2012-09-11 13:58:08 +02:00
parent b0cdd0cb13
commit c5ea4e45d8
1 changed files with 36 additions and 26 deletions
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62
beadm
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@ -189,7 +189,10 @@ case ${1} in
-v OPTION_a="${OPTION_a}" \
-v OPTION_D="${OPTION_D}" \
'function __normalize(VALUE) {
return substr(VALUE, 1, length(VALUE) - 1) * MULTIPLIER[substr(VALUE, length(VALUE))]
if(VALUE)
return substr(VALUE, 1, length(VALUE) - 1) * MULTIPLIER[substr(VALUE, length(VALUE))]
else
return 0
}
function __show_units(VALUE) {
if(VALUE < 1025) { UNIT = "K"; }
@ -212,7 +215,6 @@ case ${1} in
return NEW
}
BEGIN {
FS = "\\t"
BENAME_BEGINS_WITH = POOL "/ROOT"
MULTIPLIER["K"] = 1
MULTIPLIER["M"] = 1024
@ -225,36 +227,39 @@ case ${1} in
FSNAME_LENGTH = 2
if(OPTION_a == 1)
FSNAME_LENGTH = 19
while("mount" | getline) {
if($1 ~ "^" BENAME_BEGINS_WITH)
MOUNTS[$1] = $3
}
FS = "\\t"
while("zfs list -H -t all -s creation -o name,used,usedds,usedbysnapshots,usedrefreserv,refer,creation,origin -r " BENAME_BEGINS_WITH | getline) {
FSNAME = $1
FSNAMES[length(FSNAMES) + 1] = FSNAME
if(FSNAME != BENAME_BEGINS_WITH) {
if(FSNAME ~ "@")
SPACES[FSNAME] = __normalize($2) + __normalize($5)
USED = __normalize($2)
USEDBYDATASET = __normalize($3)
USEDBYSNAPSHOTS = __normalize($4)
USEDREFRESERV = __normalize($5)
REFER[FSNAME] = __normalize($6)
CREATIONS[FSNAME] = $7
ORIGINS[FSNAME] = $8
if(FSNAME ~ /@/)
SPACES[FSNAME] = USED + USEDREFRESERV
else {
SPACES[FSNAME] = __normalize($3) + __normalize($5)
SPACES[FSNAME] = USEDBYDATASET + USEDBYSNAPSHOTS + USEDREFRESERV
BE = " " __get_bename(FSNAME) " "
if(index(BELIST, BE) == 0)
BELIST = BELIST " " BE
}
USEDBYSNAPSHOTS = $4
USEDREFRESERV[FSNAME] = __normalize($5)
REFER[FSNAME] = __normalize($6)
CREATIONS[FSNAME] = $7
ORIGINS[FSNAME] = $8
if(USEDBYSNAPSHOTS != 0 && USEDBYSNAPSHOTS != "-")
SPACES[FSNAME] += __normalize(USEDBYSNAPSHOTS)
MOUNTLINE = ""
"mount | grep \"^" FSNAME " \"" | getline MOUNTLINE
split(MOUNTLINE, MOUNTDATA, " ")
MOUNTPOINT = MOUNTDATA[3]
if(MOUNTPOINT == "")
MOUNTPOINT = "-"
MOUNTS[FSNAME] = MOUNTPOINT
LM = length(MOUNTPOINT)
if((OPTION_a == 0 && FSNAME == (BENAME_BEGINS_WITH "/" __get_bename(FSNAME))) || (OPTION_a == 1 && FSNAME !~ /@/)) {
if(LM > MOUNTPOINT_LENGTH)
MOUNTPOINT_LENGTH = LM
MOUNTPOINT = MOUNTS[FSNAME]
if(MOUNTPOINT) {
if((OPTION_a == 0 && FSNAME == (BENAME_BEGINS_WITH "/" __get_bename(FSNAME))) || (OPTION_a == 1)) {
LM = length(MOUNTPOINT)
if(LM > MOUNTPOINT_LENGTH)
MOUNTPOINT_LENGTH = LM
}
}
else
MOUNTPOINT = "-"
}
if(OPTION_a == 1)
LF = length(FSNAME)
@ -286,14 +291,17 @@ case ${1} in
ACTIVE = ACTIVE "R"
if(! ACTIVE)
ACTIVE = "-"
printf " %-" FSNAME_LENGTH "s %-6s %-" MOUNTPOINT_LENGTH "s %6s %s\n", FSNAME, ACTIVE, MOUNTS[FSNAME], __show_units(SPACES[FSNAME]), __convert_date(CREATIONS[FSNAME])
MOUNTPOINT = MOUNTS[FSNAME]
if(! MOUNTPOINT)
MOUNTPOINT = "-"
printf " %-" FSNAME_LENGTH "s %-6s %-" MOUNTPOINT_LENGTH "s %6s %s\n", FSNAME, ACTIVE, MOUNTPOINT, __show_units(SPACES[FSNAME]), __convert_date(CREATIONS[FSNAME])
ORIGIN = ORIGINS[FSNAME]
if(ORIGIN != "-") {
if(OPTION_D == 1)
SPACE = REFER[ORIGIN]
else
SPACE = SPACES[ORIGIN]
printf " %-" FSNAME_LENGTH "s %-6s %-" MOUNTPOINT_LENGTH "s %6s %s\n", ORIGIN, "-", MOUNTS[ORIGIN], __show_units(SPACE), __convert_date(CREATIONS[ORIGIN])
printf " %-" FSNAME_LENGTH "s %-6s %-" MOUNTPOINT_LENGTH "s %6s %s\n", ORIGIN, "-", "-", __show_units(SPACE), __convert_date(CREATIONS[ORIGIN])
}
}
}
@ -313,6 +321,8 @@ case ${1} in
if(FSNAME ~ "^" BENAME_BEGINS_WITH "/" BENAME "(/[^@]*)?$") {
if((BENAME_BEGINS_WITH "/" BENAME) == FSNAME) {
MOUNTPOINT = MOUNTS[FSNAME]
if(!MOUNTPOINT)
MOUNTPOINT = "-"
CREATION = __convert_date(CREATIONS[FSNAME])
}
SPACE += SPACES[FSNAME]