diff --git a/doc/jemalloc.xml.in b/doc/jemalloc.xml.in
index b392fa9e..747e03f4 100644
--- a/doc/jemalloc.xml.in
+++ b/doc/jemalloc.xml.in
@@ -571,8 +571,8 @@ for (i = 0; i < nbins; i++) {
both large or both huge. In such cases shrinkage always succeeds, but
growth only succeeds if the trailing memory is currently available.
- Assuming 4 MiB chunks, 4 KiB pages, and a 16-byte quantum on a 64-bit
- system, the size classes in each category are as shown in Assuming 256 KiB chunks, 4 KiB pages, and a 16-byte quantum on a
+ 64-bit system, the size classes in each category are as shown in .
@@ -627,7 +627,7 @@ for (i = 0; i < nbins; i++) {
[10 KiB, 12 KiB, 14 KiB]
- Large
+ Large
2 KiB
[16 KiB]
@@ -645,7 +645,12 @@ for (i = 0; i < nbins; i++) {
32 KiB
- [160 KiB, 192 KiB, 224 KiB, 256 KiB]
+ [160 KiB, 192 KiB, 224 KiB]
+
+
+ Huge
+ 32 KiB
+ [256 KiB]
64 KiB
@@ -653,20 +658,15 @@ for (i = 0; i < nbins; i++) {
128 KiB
- [640 KiB, 768 KiB, 896 KiB, 1024 KiB]
+ [640 KiB, 768 KiB, 896 KiB, 1 MiB]
256 KiB
- [1280 KiB, 1536 KiB, 1792 KiB, 2048 KiB]
+ [1280 KiB, 1536 KiB, 1792 KiB, 2 MiB]
512 KiB
- [2560 KiB, 3072 KiB, 3584 KiB]
-
-
- Huge
- 512 KiB
- [4 MiB]
+ [2560 KiB, 3 MiB, 3584 KiB, 4 MiB]
1 MiB
@@ -907,7 +907,7 @@ for (i = 0; i < nbins; i++) {
Virtual memory chunk size (log base 2). If a chunk
size outside the supported size range is specified, the size is
silently clipped to the minimum/maximum supported size. The default
- chunk size is 4 MiB (2^22).
+ chunk size is 256 KiB (2^18).
diff --git a/include/jemalloc/internal/chunk.h b/include/jemalloc/internal/chunk.h
index 1a968a58..1af5b24b 100644
--- a/include/jemalloc/internal/chunk.h
+++ b/include/jemalloc/internal/chunk.h
@@ -5,7 +5,7 @@
* Size and alignment of memory chunks that are allocated by the OS's virtual
* memory system.
*/
-#define LG_CHUNK_DEFAULT 22
+#define LG_CHUNK_DEFAULT 18
/* Return the chunk address for allocation address a. */
#define CHUNK_ADDR2BASE(a) \