project-base/server-skynet-source-3rd-jemalloc
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move slabs out of chunks.

Browse Source
This commit is contained in:
Jason Evans
2016-05-29 18:34:50 -07:00
parent d28e5a6696
commit 498856f44a
21 changed files with 596 additions and 2332 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
include/jemalloc/internal/size_classes.sh
View File

@@ -50,7 +50,7 @@ reg_size_compute() {
reg_size=$((${grp} + ${delta}*${ndelta}))
}
run_size() {
slab_size() {
lg_p=$1
lg_grp=$2
lg_delta=$3
@@ -59,22 +59,22 @@ run_size() {
pow2 ${lg_p}; p=${pow2_result}
reg_size_compute ${lg_grp} ${lg_delta} ${ndelta}
# Compute smallest run size that is an integer multiple of reg_size.
try_run_size=${p}
try_nregs=$((${try_run_size} / ${reg_size}))
# Compute smallest slab size that is an integer multiple of reg_size.
try_slab_size=${p}
try_nregs=$((${try_slab_size} / ${reg_size}))
perfect=0
while [ ${perfect} -eq 0 ] ; do
perfect_run_size=${try_run_size}
perfect_slab_size=${try_slab_size}
perfect_nregs=${try_nregs}
try_run_size=$((${try_run_size} + ${p}))
try_nregs=$((${try_run_size} / ${reg_size}))
if [ ${perfect_run_size} -eq $((${perfect_nregs} * ${reg_size})) ] ; then
try_slab_size=$((${try_slab_size} + ${p}))
try_nregs=$((${try_slab_size} / ${reg_size}))
if [ ${perfect_slab_size} -eq $((${perfect_nregs} * ${reg_size})) ] ; then
perfect=1
fi
done
run_size_pgs=$((${perfect_run_size} / ${p}))
slab_size_pgs=$((${perfect_slab_size} / ${p}))
}
size_class() {
@@ -117,7 +117,7 @@ size_class() {
if [ ${lg_size} -lt $((${lg_p} + ${lg_g})) ] ; then
bin="yes"
run_size ${lg_p} ${lg_grp} ${lg_delta} ${ndelta}; pgs=${run_size_pgs}
slab_size ${lg_p} ${lg_grp} ${lg_delta} ${ndelta}; pgs=${slab_size_pgs}
else
bin="no"
pgs=0
@@ -278,7 +278,7 @@ cat <<EOF
* ndelta: Delta multiplier. size == 1<<lg_grp + ndelta<<lg_delta
* psz: 'yes' if a multiple of the page size, 'no' otherwise.
* bin: 'yes' if a small bin size class, 'no' otherwise.
* pgs: Run page count if a small bin size class, 0 otherwise.
* pgs: Slab page count if a small bin size class, 0 otherwise.
* lg_delta_lookup: Same as lg_delta if a lookup table size class, 'no'
* otherwise.
* NTBINS: Number of tiny bins.