From 56c8ecffc1f84f630e10f775bc29fcf4c743a3c9 Mon Sep 17 00:00:00 2001
From: Yinan Zhang <zyn8950@gmail.com>
Date: Thu, 6 Jun 2019 09:22:10 -0700
Subject: [PATCH] Correct tsd layout graph

Augmented the tsd layout graph so that the two recently added fields,
`offset_state` and `bytes_until_sample`, are properly reflected.
As is shown, the cache footprint is 16 bytes larger than before.
---
 include/jemalloc/internal/tsd.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/jemalloc/internal/tsd.h b/include/jemalloc/internal/tsd.h
index 9ba26004..18b2476b 100644
--- a/include/jemalloc/internal/tsd.h
+++ b/include/jemalloc/internal/tsd.h
@@ -20,6 +20,7 @@
  * e: tcache_enabled
  * m: thread_allocated (config_stats)
  * f: thread_deallocated (config_stats)
+ * b: bytes_until_sample (config_prof)
  * p: prof_tdata (config_prof)
  * c: rtree_ctx (rtree cache accessed on deallocation)
  * t: tcache
@@ -27,6 +28,7 @@
  * d: arenas_tdata_bypass
  * r: reentrancy_level
  * x: narenas_tdata
+ * v: offset_state
  * i: iarena
  * a: arena
  * o: arenas_tdata
@@ -35,11 +37,13 @@
  * Use a compact layout to reduce cache footprint.
  * +--- 64-bit and 64B cacheline; 1B each letter; First byte on the left. ---+
  * |----------------------------  1st cacheline  ----------------------------|
- * | sedrxxxx mmmmmmmm ffffffff pppppppp [c * 32  ........ ........ .......] |
+ * | sedrxxxx vvvvvvvv mmmmmmmm ffffffff bbbbbbbb pppppppp [c * 16  .......] |
  * |----------------------------  2nd cacheline  ----------------------------|
  * | [c * 64  ........ ........ ........ ........ ........ ........ .......] |
  * |----------------------------  3nd cacheline  ----------------------------|
- * | [c * 32  ........ ........ .......] iiiiiiii aaaaaaaa oooooooo [t...... |
+ * | [c * 48  ........ ........ ........ ........ .......] iiiiiiii aaaaaaaa |
+ * +----------------------------  4th cacheline  ----------------------------+
+ * | oooooooo [t...... ........ ........ ........ ........ ........ ........ |
  * +-------------------------------------------------------------------------+
  * Note: the entire tcache is embedded into TSD and spans multiple cachelines.
  *
-- 
2.37.3.windows.1