docker中pull和push的性能有什么不同
這篇文章主要介紹了docker中pull和push的性能有什么不同，具有一定借鑒價值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。
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0. 測試環(huán)境
基本架構：沒有docker index，所有操作發(fā)生在daemon和registry之間
鏡像：
# docker images --tree Warning: '--tree' is deprecated, it will be removed soon. See usage. ├─9247a3750813 Virtual Size: 85.1 MB │ └─a92b1d9f0ca5 Virtual Size: 1.078 GB Tags: 10.180.156.6:5000/bigtest2:latest
網絡環(huán)境：docker daemon和registry之間為千兆網絡，帶寬足夠大。
1. docker push 日志分析及registry put對比測試
在客戶端做一次docker push的時候，觀察registry端日志，刨去無關的一些日志后，如下：
10.180.156.11 - - [02/Apr/2015:03:25:55 +0000] "GET /v2/ HTTP/1.1" 404 233 "-" "Go 1.1 package http"
10.180.156.11 - - [02/Apr/2015:03:25:55 +0000] "GET /v1/_ping HTTP/1.1" 200 2 "-" "Go 1.1 package http"
02/Apr/2015:03:25:55 +0000 DEBUG: args = {'namespace': 'library', 'repository': u'bigtest2'}
02/Apr/2015:03:25:55 +0000 ERROR: <?xml version="1.0" encoding="UTF-8"?>
10.180.156.11 - - [02/Apr/2015:03:25:55 +0000] "PUT /v1/repositories/bigtest2/ HTTP/1.1" 200 2 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:25:55 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
02/Apr/2015:03:25:55 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
02/Apr/2015:03:25:55 +0000 DEBUG: api_error: Image not found
10.180.156.11 - - [02/Apr/2015:03:25:55 +0000] "GET /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/json HTTP/1.1" 404 28 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:25:55 +0000 DEBUG: api_error: Image not found
10.180.156.11 - - [02/Apr/2015:03:25:55 +0000] "GET /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/json HTTP/1.1" 404 28 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:25:55 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
10.180.156.11 - - [02/Apr/2015:03:25:56 +0000] "PUT /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/json HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
===3秒===
02/Apr/2015:03:25:57 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
===34秒===
10.180.156.11 - - [02/Apr/2015:03:26:31 +0000] "PUT /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/layer HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:26:31 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
10.180.156.11 - - [02/Apr/2015:03:26:31 +0000] "PUT /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/checksum HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:26:31 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
10.180.156.11 - - [02/Apr/2015:03:26:32 +0000] "PUT /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/json HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
===6秒===
02/Apr/2015:03:26:37 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
===325秒===
10.180.156.11 - - [02/Apr/2015:03:32:02 +0000] "PUT /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/layer HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:32:02 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
10.180.156.11 - - [02/Apr/2015:03:32:03 +0000] "PUT /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/checksum HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:32:03 +0000 DEBUG: args = {'tag': u'latest', 'namespace': 'library', 'repository': u'bigtest2'}
02/Apr/2015:03:32:03 +0000 DEBUG: [put_tag] namespace=library; repository=bigtest2; tag=latest
10.180.156.11 - - [02/Apr/2015:03:32:03 +0000] "PUT /v1/repositories/bigtest2/tags/latest HTTP/1.1" 200 4 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:03:32:03 +0000 DEBUG: args = {'images': True, 'namespace': 'library', 'repository': u'bigtest2'}
10.180.156.11 - - [02/Apr/2015:03:32:03 +0000] "PUT /v1/repositories/bigtest2/images HTTP/1.1" 204 - "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"可以發(fā)現(xiàn)，對于一個2層的鏡像，整個push的時間可以分成幾段
| 操作 | 耗時 | 百分比 |
|---|---|---|
| put json1 | 3s | 0.8% |
| put layer1 | 34s | 9.2% |
| put json2 | 6s | 1.6% |
| put layer2 | 325s | 87.6% |
| 總耗時 | 371s | 100% |
也就是說，在做put layer1和put layer2時消耗了96.8%的時間。那么，純的對registry服務做同樣文件的PUT操作，會消耗多少時間呢？
# time curl -X PUT -H "Transfer-Encoding: chunked" --data-binary @layer-a92b1 "http://10.180.156.6:5000/v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/layer" true real 0m44.571s user 0m0.302s sys 0m1.341s # time curl -X PUT -H "Transfer-Encoding: chunked" --data-binary @layer-9247a "http://10.180.156.6:5000/v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/layer" true real 0m4.277s user 0m0.029s sys 0m0.130s
2. docker pull 日志分析及registry get對比測試
類似上個節(jié)，繼續(xù)做pull的日志分析
10.180.156.11 - - [02/Apr/2015:08:54:16 +0000] "GET /v2/ HTTP/1.1" 404 233 "-" "Go 1.1 package http"
10.180.156.11 - - [02/Apr/2015:08:54:16 +0000] "GET /v1/_ping HTTP/1.1" 200 2 "-" "Go 1.1 package http"
02/Apr/2015:08:54:16 +0000 DEBUG: args = {'namespace': 'library', 'repository': u'bigtest2'}
10.180.156.11 - - [02/Apr/2015:08:54:16 +0000] "GET /v1/repositories/bigtest2/images HTTP/1.1" 200 152 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:54:16 +0000 DEBUG: args = {'namespace': u'library', 'repository': u'bigtest2'}
02/Apr/2015:08:54:16 +0000 DEBUG: [get_tags] namespace=library; repository=bigtest2
10.180.156.11 - - [02/Apr/2015:08:54:16 +0000] "GET /v1/repositories/library/bigtest2/tags HTTP/1.1" 200 78 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:54:16 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
10.180.156.11 - - [02/Apr/2015:08:54:16 +0000] "GET /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/ancestry HTTP/1.1" 200 136 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:54:16 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
10.180.156.11 - - [02/Apr/2015:08:54:17 +0000] "GET /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/json HTTP/1.1" 200 619 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:54:17 +0000 DEBUG: args = {'image_id': u'9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f'}
===6秒===
10.180.156.11 - - [02/Apr/2015:08:54:23 +0000] "GET /v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/layer HTTP/1.1" 200 37124367 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:54:24 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
===42秒===
02/Apr/2015:08:55:06 +0000 DEBUG: api_error: Image not found
10.180.156.11 - - [02/Apr/2015:08:55:06 +0000] "GET /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/json HTTP/1.1" 404 28 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:55:06 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
10.180.156.11 - - [02/Apr/2015:08:55:06 +0000] "GET /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/json HTTP/1.1" 200 1172 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"
02/Apr/2015:08:55:07 +0000 DEBUG: args = {'image_id': u'a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5'}
===2秒===
10.180.156.11 - - [02/Apr/2015:08:56:08 +0000] "GET /v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/layer HTTP/1.1" 200 420084375 "-" "docker/1.5.0 go/go1.4.1 git-commit/a8a31ef kernel/3.13.0-32-generic os/linux arch/amd64"可以發(fā)現(xiàn)，對于一個2層的鏡像，整個pull的時間可以分成幾段
| 操作 | 耗時 | 百分比 |
|---|---|---|
| get json1 | 6s | 5.1% |
| get layer1 | 42s | 36.2% |
| get json2 | 0s | 0% |
| get layer2 | 2s | 1.7% |
| 總耗時 | 116s | 100% |
對比直接從registry上get測試
# time curl -X GET -H "Transfer-Encoding: chunked" -o layer-9247a-down "http://10.180.156.6:5000/v1/images/9247a37508136a5fe916f4f87bfa2aa47f2edf8fc1a1ce787445b606d8fdbf9f/layer" % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 35.4M 100 35.4M 0 0 25.3M 0 0:00:01 0:00:01 --:--:-- 25.3M real 0m1.409s user 0m0.036s sys 0m0.233s
# time curl -X GET -H "Transfer-Encoding: chunked" -o layer-a92b1-down "http://10.180.156.6:5000/v1/images/a92b1d9f0ca59cefd024a5f2f2d23e2d617b3e67cc2363c94998006fa87e60e5/layer" % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 400M 100 400M 0 0 19.2M 0 0:00:20 0:00:20 --:--:-- 24.5M real 0m20.771s user 0m0.381s sys 0m2.501s
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