17 files changed, 440 insertions, 331 deletions
diff --git a/benchmarks/clean b/benchmarks/clean
deleted file mode 100755
index 325edec..0000000
--- a/benchmarks/clean
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-from fragments import garage, shared
-
-garage.destroy()
-shared.log("clean done")
-
diff --git a/benchmarks/fragments/.shared.py.swo b/benchmarks/fragments/.shared.py.swo
deleted file mode 100644
index 02b9acb..0000000
--- a/benchmarks/fragments/.shared.py.swo
+++ /dev/null
diff --git a/benchmarks/fragments/garage.py b/benchmarks/fragments/garage.py
deleted file mode 100644
index ac77475..0000000
--- a/benchmarks/fragments/garage.py
+++ /dev/null
@@ -1,202 +0,0 @@
-import glob, json, requests, time, garage_admin_sdk
-from os.path import exists
-from os import environ as env
-from pathlib import Path
-from fragments import shared
-from garage_admin_sdk.api import nodes_api, layout_api, key_api
-from garage_admin_sdk.model.node_cluster_info import NodeClusterInfo
-from garage_admin_sdk.model.layout_version import LayoutVersion
-from garage_admin_sdk.model.add_key_request import AddKeyRequest
-from garage_admin_sdk.model.update_key_request import UpdateKeyRequest
-from garage_admin_sdk.model.update_key_request_allow import UpdateKeyRequestAllow
-
-storage_path = "./i/am/not/defined"
-rpc_secret = "3e9abff5f9e480afbadb46a77b7a26fe0e404258f0dc3fd5386b0ba8e0ad2fba"
-metrics = "cacce0b2de4bc2d9f5b5fdff551e01ac1496055aed248202d415398987e35f81"
-admin = "ae8cb40ea7368bbdbb6430af11cca7da833d3458a5f52086f4e805a570fb5c2a"
-path = None
-access_key = None
-secret_key = None
-
-
-configuration = garage_admin_sdk.Configuration(
-    host = "http://localhost:3903/v0",
-    access_token = admin
-)
-api = garage_admin_sdk.ApiClient(configuration) 
-nodes = nodes_api.NodesApi(api)
-layout = layout_api.LayoutApi(api)
-keys = key_api.KeyApi(api)
-
-
-# Setup, launch on import
-storage_path = Path(shared.storage_path) / "garage" / env['HOST']
-if 'ZONE' in env:
-    storage_path = Path(shared.storage_path) / "garage" / env['ZONE'] / env['HOST']
-config = storage_path / "garage.toml"
-env['GARAGE_CONFIG_FILE'] = str(config)
-
-def deploy_coord(version=None, target=None):
-    destroy()
-    from_ci(version, target)
-    shared.log("start daemon")
-    daemon()
-    shared.log("discover nodes")
-    connect()
-    shared.log("build layout")
-    create_layout()
-    shared.log("create key")
-    create_key()
-    shared.log("ready")
-
-def deploy_follow(version=None, target=None):
-    destroy()
-    from_ci(version, target)
-    shared.log("start daemon")
-    daemon()
-    shared.log("wait for coord")
-    sync_on_key_up()
-    shared.log("ready")
-
-def from_local(p):
-    global path
-    path = p
-    shared.exec(f"{p} --version")
-
-def from_ci(version=None, target=None):
-    global path
-    version = version or "v0.7.3"
-    target = target or "x86_64-unknown-linux-musl"
-
-    binary = f"garage-{target}-{version}"
-    path = Path(shared.binary_path) / binary
-    if shared.id() != 1: return 
-
-    if not exists(path):
-        shared.exec(f"mkdir -p {shared.binary_path}")
-        shared.exec(f"wget https://garagehq.deuxfleurs.fr/_releases/{version}/{target}/garage -O {path}")
-    shared.exec(f"chmod +x {path}")
-    shared.exec(f"{path} --version")
-
-def daemon():
-    shared.exec(f"mkdir -p {storage_path}")
-    with open(config, 'w+') as f:
-        f.write(f"""
-metadata_dir = "{storage_path}/meta"
-data_dir = "{storage_path}/data"
-
-replication_mode = "3"
-
-rpc_bind_addr = "[::]:3901"
-rpc_public_addr = "[{env['IP']}]:3901"
-rpc_secret = "{rpc_secret}"
-
-bootstrap_peers=[]
-
-[s3_api]
-s3_region = "garage"
-api_bind_addr = "[::]:3900"
-root_domain = ".s3.garage"
-
-[s3_web]
-bind_addr = "[::]:3902"
-root_domain = ".web.garage"
-index = "index.html"
-
-[admin]
-api_bind_addr = "0.0.0.0:3903"
-metrics_token = "{metrics}"
-admin_token = "{admin}"
-        """)
-
-    shared.exec(f"{path} server 2>> {storage_path}/logs.stderr 1>> {storage_path}/logs.stdout & echo $! > {storage_path}/daemon.pid")
-    time.sleep(1)
-
-    node_info = storage_path / "node_info"
-    node_id = nodes.get_nodes().node
-    with open(node_info, 'w+') as f:
-        f.write(json.dumps({
-            "node_addr": f"{node_id}@{env['IP']}:3901",
-            "node_id": node_id,
-            "zone": env['ZONE'],
-            "host": env['HOST'],
-        }))
-
-def destroy():
-    dpid = Path(storage_path) / "daemon.pid"
-    if exists(dpid):
-        shared.exec(f"kill -9 $(cat {dpid})")
-        shared.exec(f"rm -f {dpid}")
-    if len(str(storage_path)) < 8: # arbitrary, stupid safe guard
-        print(storage_path)
-        raise Exception("You tried to clean a storage path that might be the root of your FS, panicking...")
-    shared.exec(f"rm -fr {storage_path}")
-
-# this function is ugly, sorry :s
-_cluster_info = None
-def cluster_info():
-    global _cluster_info
-    if _cluster_info is not None: return _cluster_info
-
-    while True:
-        time.sleep(1)
-        node_files = glob.glob(f"{shared.storage_path}/**/node_info", recursive=True)
-        if len(node_files) == shared.count(): break
-
-    _cluster_info = [ json.loads(Path(f).read_text()) for f in node_files ]
-    return _cluster_info
-
-
-def connect():
-    cinf = cluster_info()
-    ret = nodes.add_node([n['node_addr'] for n in cinf])
-    for st in ret:
-        if not st.success:
-            raise Exception("Node connect failed", ret)
-    shared.log("all nodes connected")
-
-def create_layout():
-    v = layout.get_layout().version
-
-    cinf = cluster_info()
-    nlay = dict()
-    for n in cinf:
-        nlay[n['node_id']] = NodeClusterInfo(
-            zone = n['zone'],
-            capacity = 1,
-            tags = [ n['host'] ],
-        )
-    layout.add_layout(nlay)
-    layout.apply_layout(LayoutVersion(version=v+1))
-
-def create_key():
-    global key
-    kinfo = shared.fn_retry(lambda: keys.add_key(AddKeyRequest(name="mknet")))
-    allow_create = UpdateKeyRequestAllow(create_bucket=True)
-    keys.update_key(kinfo.access_key_id, UpdateKeyRequest(allow=allow_create))
-    key = kinfo
-
-
-def delete_key():
-    global key
-    delete_key(key.access_key_id)
-    key = None
-
-def sync_on_key_up():
-    global key
-    while True:
-        try:
-            key = keys.search_key("mknet")
-            return key
-        except:
-            pass
-        time.sleep(1)
-
-def sync_on_key_down():
-    while True:
-        try:
-            keys.search_key("mknet")
-        except:
-            return
-        time.sleep(1)
-
diff --git a/benchmarks/fragments/minio.py b/benchmarks/fragments/minio.py
deleted file mode 100644
index 431b983..0000000
--- a/benchmarks/fragments/minio.py
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/usr/bin/env python3
-import json, os, sys, time, pathlib, socket, shutil
-
-STORAGE_PATH = os.path.join(os.getcwd(), '.minio-testnet')
-HOSTS_PATH = os.path.join(STORAGE_PATH, 'hosts.txt')
-UNIX_SOCK = os.path.join(STORAGE_PATH, 'deploy.sock')
-DATA_PATH = lambda nid: os.path.join(STORAGE_PATH, 'data'+str(nid))
-
-def main():
-    if int(os.environ['ID']) == 1: leader()
-    else: follower()
-
-def leader():
-    shutil.rmtree(STORAGE_PATH, ignore_errors=True)
-    os.makedirs(STORAGE_PATH)
-    print(STORAGE_PATH)
-
-    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-    sock.bind(UNIX_SOCK)
-    sock.listen()
-
-    n_serv = int(os.environ['SERVER_COUNT'])
-    fl = [ co for co, addr in [ sock.accept() for i in range(n_serv - 1) ]]
-
-    identities = [ json.loads(co.makefile().readline()) for co in fl ] + [ { "ip": os.environ['IP'], "path": make_data() } ]
-    print(f"ident: {identities}")
-    msg = f"{json.dumps(identities)}\n".encode()
-    [ co.send(msg) for co in fl ]
-
-    run_minio(identities)
-
-def follower():
-    co = None
-    while True:
-        time.sleep(1)
-        try:
-            sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-            sock.connect(UNIX_SOCK)
-            co = sock.makefile()
-            break
-        except Exception as err:
-            print('conn failed, wait,', err)
-    my_identity = json.dumps({ "ip": os.environ['IP'], "path": make_data() })
-    sock.send(f"{my_identity}\n".encode())
-    identities = json.loads(co.readline())
-
-    run_minio(identities)
-
-def make_data():
-    data_path = DATA_PATH(os.environ['ID'])
-    os.makedirs(data_path)
-    return data_path
-
-def run_minio(identities):
-    cmd = f"minio server --console-address ':9001' --address ':9000'"
-    for ident in identities:
-        cmd += f" http://[{ident['ip']}]:9000{ident['path']}"
-    cmd += f" > {os.path.join(STORAGE_PATH, 'minio'+os.environ['ID']+'.log')} 2>&1"
-    print("launch: ", cmd)
-    os.system(cmd)
-
-__name__ == '__main__' and main()
diff --git a/benchmarks/fragments/s3lat.py b/benchmarks/fragments/s3lat.py
deleted file mode 100644
index c25594e..0000000
--- a/benchmarks/fragments/s3lat.py
+++ /dev/null
@@ -1,18 +0,0 @@
-a = """
-echo "sleep 3 min to wait for minio bootstrap"
-sleep 180
-
-export ENDPOINT=localhost:9000
-export AWS_ACCESS_KEY_ID=minioadmin
-export AWS_SECRET_ACCESS_KEY=minioadmin
-
-mc alias set minio-bench http://$ENDPOINT $AWS_ACCESS_KEY_ID $AWS_SECRET_ACCESS_KEY
-for i in $(seq 1 10); do
-  mc mb minio-bench/bench$i
-done
-
-s3lat | tee 50ms.minio.csv
-"""
-
-def on_garage():
-    raise Exception("Not yet implemented")
diff --git a/benchmarks/fragments/shared.py b/benchmarks/fragments/shared.py
deleted file mode 100644
index e0cd449..0000000
--- a/benchmarks/fragments/shared.py
+++ /dev/null
@@ -1,28 +0,0 @@
-import os, time
-
-binary_path = "/tmp/mknet-bin"
-storage_path = "/tmp/mknet-store"
-
-def exec(s): 
-    if os.system(s) != 0:
-        raise Exception("Command terminated with an error")
-def exec_retry(s, cnt=16):
-    print(s)
-    for i in range(cnt):
-        time.sleep(i) # this is expected to sleep before running the command to reduce the noise
-        if os.system(s) == 0: return
-    raise Exception("Command terminated with an error too many times")
-def fn_retry(f, cnt=5):
-    for i in range(cnt):
-        try:
-            r = f()
-            return r
-        except Exception as e:
-            if i+1 == cnt: raise e
-            log(f"failed call, retry in {i} sec")
-            time.sleep(i)
-
-def id(): return int(os.environ['ID'])
-def count(): return int(os.environ['SERVER_COUNT'])
-def log(*args): print(f"[{id()}/{count()} - {os.environ['HOST']}]", *args)
-
diff --git a/benchmarks/garage-s3lat b/benchmarks/garage-s3lat
deleted file mode 100755
index 361ed26..0000000
--- a/benchmarks/garage-s3lat
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env python3
-from fragments import garage, s3lat, shared
-
-if shared.id() == 1:
-    garage.deploy_coord()
-    s3lat.on_garage()
-    garage.delete_key()
-    garage.destroy()
-else:
-    garage.deploy_follow()
-    garage.sync_on_key_down()
-    garage.destroy()
diff --git a/benchmarks/requirements.txt b/benchmarks/requirements.txt
deleted file mode 100644
index 41a5912..0000000
--- a/benchmarks/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-git+https://git.deuxfleurs.fr/quentin/garage-admin-sdk@7b1c1faf7a#egg=garage-admin-sdk&subdirectory=python
diff --git a/benchmarks/s3concurrent/go.mod b/benchmarks/s3concurrent/go.mod
new file mode 100644
index 0000000..d3b6113
--- /dev/null
+++ b/benchmarks/s3concurrent/go.mod
@@ -0,0 +1,24 @@
+module git.deuxfleurs.fr/quentin/s3concurrent
+
+go 1.18
+
+require github.com/minio/minio-go/v7 v7.0.34
+
+require (
+	github.com/dustin/go-humanize v1.0.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.15.9 // indirect
+	github.com/klauspost/cpuid/v2 v2.1.0 // indirect
+	github.com/minio/md5-simd v1.1.2 // indirect
+	github.com/minio/sha256-simd v1.0.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/rs/xid v1.4.0 // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
+	golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
+	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
+	golang.org/x/text v0.3.7 // indirect
+	gopkg.in/ini.v1 v1.66.6 // indirect
+)
diff --git a/benchmarks/s3concurrent/go.sum b/benchmarks/s3concurrent/go.sum
new file mode 100644
index 0000000..598b838
--- /dev/null
+++ b/benchmarks/s3concurrent/go.sum
@@ -0,0 +1,52 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
+github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/klauspost/compress v1.15.9 h1:wKRjX6JRtDdrE9qwa4b/Cip7ACOshUI4smpCQanqjSY=
+github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
+github.com/klauspost/cpuid/v2 v2.0.1/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
+github.com/klauspost/cpuid/v2 v2.0.4/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
+github.com/klauspost/cpuid/v2 v2.1.0 h1:eyi1Ad2aNJMW95zcSbmGg7Cg6cq3ADwLpMAP96d8rF0=
+github.com/klauspost/cpuid/v2 v2.1.0/go.mod h1:RVVoqg1df56z8g3pUjL/3lE5UfnlrJX8tyFgg4nqhuY=
+github.com/minio/md5-simd v1.1.2 h1:Gdi1DZK69+ZVMoNHRXJyNcxrMA4dSxoYHZSQbirFg34=
+github.com/minio/md5-simd v1.1.2/go.mod h1:MzdKDxYpY2BT9XQFocsiZf/NKVtR7nkE4RoEpN+20RM=
+github.com/minio/minio-go/v7 v7.0.34 h1:JMfS5fudx1mN6V2MMNyCJ7UMrjEzZzIvMgfkWc1Vnjk=
+github.com/minio/minio-go/v7 v7.0.34/go.mod h1:nCrRzjoSUQh8hgKKtu3Y708OLvRLtuASMg2/nvmbarw=
+github.com/minio/sha256-simd v1.0.0 h1:v1ta+49hkWZyvaKwrQB8elexRqm6Y0aMLjCNsrYxo6g=
+github.com/minio/sha256-simd v1.0.0/go.mod h1:OuYzVNI5vcoYIAmbIvHPl3N3jUzVedXbKy5RFepssQM=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
+github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rs/xid v1.4.0 h1:qd7wPTDkN6KQx2VmMBLrpHkiyQwgFXRnkOLacUiaSNY=
+github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
+github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
+github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa h1:zuSxTR4o9y82ebqCUJYNGJbGPo6sKVl54f/TVDObg1c=
+golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/net v0.0.0-20220722155237-a158d28d115b h1:PxfKdU9lEEDYjdIzOtC4qFWgkU2rGHdKlKowJSMN9h0=
+golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f h1:v4INt8xihDGvnrfjMDVXGxw9wrfxYyCjk0KbXjhR55s=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/ini.v1 v1.66.6 h1:LATuAqN/shcYAOkv3wl2L4rkaKqkcgTBQjOyYDvcPKI=
+gopkg.in/ini.v1 v1.66.6/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/benchmarks/s3concurrent/main.go b/benchmarks/s3concurrent/main.go
new file mode 100644
index 0000000..a67fc5b
--- /dev/null
+++ b/benchmarks/s3concurrent/main.go
@@ -0,0 +1,121 @@
+package main
+
+import (
+    "context"
+    "crypto/tls"
+    "io"
+    "log"
+    "math/rand"
+    "net/http"
+    "os"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+    "github.com/google/uuid"
+)
+
+func buildMc() (*minio.Client, error) {
+	_, isSSL := os.LookupEnv("SSL")
+	opts := minio.Options{
+		Creds:  credentials.NewStaticV4(os.Getenv("AWS_ACCESS_KEY_ID"), os.Getenv("AWS_SECRET_ACCESS_KEY"), ""),
+		Secure: isSSL,
+	}
+
+	if region, ok := os.LookupEnv("REGION"); ok {
+		opts.Region = region
+	}
+
+	if _, ok := os.LookupEnv("SSL_INSECURE"); ok {
+		opts.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}}
+	}
+
+	mc, err := minio.New(os.Getenv("ENDPOINT"), &opts)
+    return mc, err
+}
+
+type PRNG struct { 
+    rem int64
+}
+func (r *PRNG)  Read(p []byte) (n int, err error) {
+    //log.Printf("rem=%d, buf=%d\n", r.rem, len(p))
+    if int64(len(p)) > r.rem {
+        p = p[:r.rem]
+    }
+
+    if int64(len(p)) > r.rem {
+        log.Fatal("LOGIC ERROR")
+    }
+
+    n, err = rand.Read(p)
+    if err != nil {
+        return
+    }
+    r.rem -= int64(n)
+    if r.rem <= 0 {
+        err = io.EOF
+        //log.Printf("PRNG file has been fully read. rem=%d,n=%d,err=%s\n", r.rem, n, err)
+    }
+    return
+}
+
+func putObj(buck string, size int64) error {
+    mc, err := buildMc()
+    if err != nil {
+        return err
+    }
+
+    prng := new(PRNG)
+    prng.rem = size
+
+    key := uuid.New().String()
+
+    _, err = mc.PutObject(
+        context.Background(), 
+        buck, 
+        key, 
+        prng, 
+        size, 
+        minio.PutObjectOptions{ContentType:"application/octet-stream"},
+    )
+
+    return err
+}
+
+func main() {
+    minio.MaxRetry = 1
+    mc, err := buildMc()
+	if err != nil {
+		log.Fatal("failed connect", err)
+		return
+	}
+
+    // Create Bucket
+    buck := uuid.New().String()
+    err = mc.MakeBucket(context.Background(), buck, minio.MakeBucketOptions{ })
+    if err != nil {
+        log.Fatal(err)
+        return
+    }
+    log.Printf("created bucket %s\n", buck)
+
+    // Send to bucket
+    for i := 1; i <= 16; i++ {
+        log.Printf("start concurrent loop with %d coroutines\n", i)
+        syn := make(chan error)
+        for j := 1; j <= i; j++ {
+            go func() {
+                syn <- putObj(buck, 1024 * 1024)
+            }()
+        }
+
+        for j := 1; j <= i; j++ {
+            cerr := <-syn
+            if cerr != nil {
+                log.Printf("%d/%d failed with %s\n", j, i, cerr)
+            }
+        }
+        log.Printf("done, %d coroutines returned\n", i)
+    }
+
+    log.Println("done")
+}
diff --git a/benchmarks/s3lat/README.md b/benchmarks/s3lat/README.md
new file mode 100644
index 0000000..95936bc
--- /dev/null
+++ b/benchmarks/s3lat/README.md
@@ -0,0 +1,22 @@
+# s3lat
+
+## installation
+
+```bash
+go get git.deuxfleurs.fr/quentin/s3lat@latest
+```
+
+## usage
+
+```bash
+export ENDPOINT=[fc00:9a7a:9e::1]:9000
+export AWS_ACCESS_KEY_ID=minioadmin
+export AWS_SECRET_ACCESS_KEY=minioadmin
+
+s3lat
+```
+
+## see also
+
+ - https://git.deuxfleurs.fr/quentin/benchmarks
+ - https://git.deuxfleurs.fr/trinity-1686a/mknet
diff --git a/benchmarks/s3lat/go.mod b/benchmarks/s3lat/go.mod
new file mode 100644
index 0000000..627a83a
--- /dev/null
+++ b/benchmarks/s3lat/go.mod
@@ -0,0 +1,8 @@
+module git.deuxfleurs.fr/quentin/s3lat
+
+go 1.16
+
+require (
+	github.com/google/uuid v1.1.1
+	github.com/minio/minio-go/v7 v7.0.16
+)
diff --git a/benchmarks/s3lat/go.sum b/benchmarks/s3lat/go.sum
new file mode 100644
index 0000000..207d6f9
--- /dev/null
+++ b/benchmarks/s3lat/go.sum
@@ -0,0 +1,78 @@
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diff --git a/benchmarks/s3lat/main.go b/benchmarks/s3lat/main.go
new file mode 100644
index 0000000..32b03cf
--- /dev/null
+++ b/benchmarks/s3lat/main.go
@@ -0,0 +1,135 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"fmt"
+	"time"
+	"io"
+	"io/ioutil"
+	"strings"
+	"net/http"
+	"crypto/tls"
+	"strconv"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+    "github.com/google/uuid"
+)
+
+func main() {
+	fmt.Printf("endpoint,nanoseconds\n")
+
+    // Initial setup
+	_, isSSL := os.LookupEnv("SSL");
+	opts := minio.Options {
+		Creds:  credentials.NewStaticV4(os.Getenv("AWS_ACCESS_KEY_ID"), os.Getenv("AWS_SECRET_ACCESS_KEY"), ""),
+		Secure: isSSL,
+	}
+
+	if region, ok := os.LookupEnv("REGION"); ok {
+		opts.Region = region
+	}
+
+	if _, ok := os.LookupEnv("SSL_INSECURE"); ok {
+		opts.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}}
+	}
+
+	mc, err := minio.New(os.Getenv("ENDPOINT"), &opts)
+
+	if err != nil {
+		log.Fatal("failed connect", err)
+		return
+	}
+
+    // Create Bucket
+    buck := uuid.New().String()
+    err = mc.MakeBucket(context.Background(), buck, minio.MakeBucketOptions{ })
+    if err != nil {
+        log.Fatal(err)
+        return
+    }
+
+    // List Buckets
+	for i := 0; i < 100; i++ {
+		start := time.Now()
+		_, err := mc.ListBuckets(context.Background())
+		elapsed := time.Since(start)
+		if err != nil {
+			log.Fatal("failed listbucket: ", err)
+		return
+		}
+		fmt.Printf("listbuckets,%v\n", elapsed.Nanoseconds())
+	}
+
+    // PutObject
+	for i := 0; i < 100; i++ {
+		istr := strconv.Itoa(i)
+		content := istr + " hello world " + istr
+		start := time.Now()
+		_, err := mc.PutObject(context.Background(), buck, "element"+istr, strings.NewReader(content), int64(len(content)), minio.PutObjectOptions{ContentType:"application/octet-stream"})
+		elapsed := time.Since(start)
+		if err != nil {
+			log.Fatal("failed putObject: ",err)
+			return
+		}
+		fmt.Printf("putobject,%v\n", elapsed.Nanoseconds())
+	}
+
+    // ListObject
+	for i := 0; i < 100; i++ {
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		start := time.Now()
+		objectCh := mc.ListObjects(ctx, buck, minio.ListObjectsOptions{
+			Recursive: true,
+		})
+		for object := range objectCh {
+			if object.Err != nil {
+				log.Fatal(object.Err)
+				return
+			}
+		}
+		elapsed := time.Since(start)
+		fmt.Printf("listobjects,%v\n", elapsed.Nanoseconds())
+	}
+
+    // GetObject
+	for i := 0; i < 100; i++ {
+		istr := strconv.Itoa(i)
+		start := time.Now()
+		object, err := mc.GetObject(context.Background(), buck, "element"+istr, minio.GetObjectOptions{})
+		if err != nil {
+			log.Fatal(err)
+			return
+		}
+		if _, err = io.Copy(ioutil.Discard, object) ; err != nil {
+			log.Fatal("failed getobject: ", err)
+			return
+		}
+		elapsed := time.Since(start)
+		fmt.Printf("getobject,%v\n", elapsed.Nanoseconds())
+	}
+
+    // RemoveObject
+	for i := 0; i < 100; i++ {
+		istr := strconv.Itoa(i)
+		start := time.Now()
+		err = mc.RemoveObject(context.Background(), buck, "element"+istr, minio.RemoveObjectOptions{})
+		elapsed := time.Since(start)
+		if err != nil {
+			log.Fatal(err)
+			return
+		}
+		fmt.Printf("removeobject,%v\n", elapsed.Nanoseconds())
+	}
+
+    // RemoveBucket
+    err = mc.RemoveBucket(context.Background(), buck)
+    if err != nil {
+        log.Fatal(err)
+        return
+    }
+}
diff --git a/benchmarks/s3lat/s3lat b/benchmarks/s3lat/s3lat
new file mode 100755
index 0000000..8b1f095
--- /dev/null
+++ b/benchmarks/s3lat/s3lat
diff --git a/benchmarks/warp b/benchmarks/warp
new file mode 160000
+Subproject df8f2cd7b7a8523755b4d3c04271a69571a455c