From 82cf8fe9e40457849d52b296233f15dd4d4de940 Mon Sep 17 00:00:00 2001
From: qiongsi <qiongsi.wu@mail.utoronto.ca>
Date: Tue, 10 Sep 2019 09:27:32 -0400
Subject: [PATCH 1/3] Fixing an issue where mstat is trying to read from
 non-existent cgroup

---
 poller.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/poller.go b/poller.go
index ee4b1b0..3f586f8 100644
--- a/poller.go
+++ b/poller.go
@@ -60,7 +60,7 @@ func NewPoller(cgroup cgroups.Cgroup, freq int) (*Poller, error) {
 
 func (p *Poller) poll(t time.Time, cgroup cgroups.Cgroup) error {
 
-	stats, err := cgroup.Stat()
+	stats, err := cgroup.Stat(cgroups.ErrorHandler(cgroups.IgnoreNotExist))
 	if err != nil || stats == nil {
 		return fmt.Errorf("cg.Stat: %s", err)
 	}

From 064069707d1d882b5a1429e78744007c3828a4ba Mon Sep 17 00:00:00 2001
From: qiongsi <qiongsi.wu@mail.utoronto.ca>
Date: Tue, 10 Sep 2019 09:36:14 -0400
Subject: [PATCH 2/3] Adding instructions on how to run mstat standalone

---
 README.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/README.md b/README.md
index 17ab3f1..abc3e88 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,23 @@ grained reporting):
 And there is even a handy flag to modify the environment:
 
     $ mstat -o data/mem.tsv -freq 59 -env LD_PRELOAD=libawesome.so -- ./test
+
+### Use `mstat` without Docker ###
+Prerequisite:
+* [golang](https://golang.org/)
+
+After installing golang and cloning this repository, download all the go dependencies with the command
+
+    $ cd mstat
+    $ go get -d ./...
+
+Then proceed with make and installation. If you want to be able to uninstall
+`mstat` later, instead of using `make install`, use the command below
+
+    $ sudo checkinstall
+
+You will be able to uninstall `mstat` by running
+
+    $ sudo dpkg -r mstat
+
+later. 

From 3dd51d8c7695f1bcc144b43e17aa0e025ed67b71 Mon Sep 17 00:00:00 2001
From: Qiongsi Wu <qiongsi.wu@ibm.com>
Date: Mon, 9 Dec 2019 17:24:51 +0000
Subject: [PATCH 3/3] included stats from v1

---
 poller.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/poller.go b/poller.go
index 3f586f8..721d767 100644
--- a/poller.go
+++ b/poller.go
@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/containerd/cgroups"
+	v1 "github.com/containerd/cgroups/stats/v1"
 )
 
 type Record struct {
@@ -20,7 +21,8 @@ type Record struct {
 
 type Stats struct {
 	Rss   []Record
-	Stats []*cgroups.MemoryStat
+	Stats []*v1.Metrics
+	// Stats []*cgroups.MemoryStat
 }
 
 type endReq struct {