From 703faabf2d44d245fe1dd0b75f1736bf6114a557 Mon Sep 17 00:00:00 2001
From: Konstantin Ananyev <konstantin.ananyev@intel.com>
Date: Thu, 27 Jun 2019 19:28:26 +0100
Subject: v6: memtank introduction

For analogy with mempool, named this structure memtank.
Same a s mempool it allows to alloc/free objects of fixed size
in a lightweight manner (not as lightweight as mempool,
but hopefully close enough).
The whole idea is that alloc/free is used at fast-path and don't
allocate/free more than *min_free* objects at one call.
So for majority of cases our fast-path alloc/free should be lightweight
(LIFO enqueue/dequeue operations).
Also user will need to call grow/shrink periodically
(ideally from the slow-path) to make sure there is enough
free objects in the tank.
Internally it is just a simple LIFO for up to *max_free* objects plus
a list of memory buffers (memchunk) from where these objects were
allocated.

v1 -> v2
 - Added UT
 - Fixed few bugs

v2 -> v3
 - extend UT with more parameters

v3 -> v4
 - add object alignement as parameter for memtank_create
 - extend UT with more parameters
 - added memtank dump routine

v4 -> v5
 - fixed few bugs inside memtank lib
 - extend UT with:
   - new test case
   - new command-line options: '-s <obj_size>', '-m <mem_func>'

v5 -> v6
 - extend memtank dump to collect/display extra information
 - make memtank dump routine MT safe
 - add memtank sanity check function
 - add proper comments for pubic API

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Change-Id: I8939772577f5d9e293088eaa9a9fe316c3fe8f87
---
 lib/libtle_memtank/Makefile | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 lib/libtle_memtank/Makefile

(limited to 'lib/libtle_memtank/Makefile')

diff --git a/lib/libtle_memtank/Makefile b/lib/libtle_memtank/Makefile
new file mode 100644
index 0000000..d87e320
--- /dev/null
+++ b/lib/libtle_memtank/Makefile
@@ -0,0 +1,40 @@
+# Copyright (c) 2016 Intel Corporation.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overwritten by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# library name
+LIB = libtle_memtank.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR)
+
+EXPORT_MAP := tle_memtank_version.map
+
+LIBABIVER := 1
+
+#source files
+SRCS-y += memtank.c
+SRCS-y += misc.c
+
+SYMLINK-y-include += tle_memtank_pub.h
+SYMLINK-y-include += tle_memtank.h
+
+include $(TLDK_ROOT)/mk/tle.lib.mk
-- 
cgit 1.2.3-korg