From: @xiaoyisd
Reviewed-by: @liangchenghui,@jjfeing
Signed-off-by: @liangchenghui

From: @nsyca
Reviewed-by: 
Signed-off-by:

From: @peilin-wang
Reviewed-by: @robingrosman,@tom__chen
Signed-off-by: @robingrosman

From: @jonwe
Reviewed-by: 
Signed-off-by:

From: @TFbunny
Reviewed-by: @robingrosman,@robingrosman
Signed-off-by:

From: @alex-yuyue
Reviewed-by: @mikef
Signed-off-by:

From: @cathwong
Reviewed-by: @mikef,@nsyca
Signed-off-by: @nsyca

From: @lixiachen
Reviewed-by: @nsyca,@mikef
Signed-off-by: @nsyca

From: @wangnan39
Reviewed-by: @guoqi1024,@kingxian
Signed-off-by: @kingxian

From: @joylvliang
Reviewed-by: @chujinjin,@jjfeing
Signed-off-by: @chujinjin

From: @jojobugfree
Reviewed-by: @chujinjin,@jjfeing
Signed-off-by: @chujinjin

From: @yangruoqi713
Reviewed-by: 
Signed-off-by:

From: @lvchangquan
Reviewed-by: @chujinjin,@kisnwang
Signed-off-by: @chujinjin,@kisnwang

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

From: @tom__chen
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

From: @lichen666
Reviewed-by: @zh_qh
Signed-off-by:

From: @yanzhenxiang2020
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @wuxuejian

From: @gong_zi_yan
Reviewed-by: @stsuteng,@yangzhenzhang,@kisnwang
Signed-off-by: @stsuteng,@kisnwang

From: @liubuyu
Reviewed-by: 
Signed-off-by:

From: @ddwsky
Reviewed-by: @HilbertDavid,@zhanghaibo5
Signed-off-by: @HilbertDavid

From: @chenzupeng
Reviewed-by: @ddwsky,@zhanghaibo5
Signed-off-by: @ddwsky

From: @yuzhenhua666
Reviewed-by: @c_34
Signed-off-by: @c_34

From: @zhouyaqiang0
Reviewed-by: 
Signed-off-by:

Recursively create sub dirs

Optimize heatmap saving

better coding format

fix typo

add os.chmod() to make sure

forgot to append the image filename to the returned path

use realpath() instead of abspath()