| author | Oleksandr Gavenko <gavenkoa@gmail.com> |
| Mon, 30 Jan 2017 00:44:30 +0200 | |
| changeset 2075 | ccaa2f364422 |
| parent 1912 | 8b81a8f0f692 |
| child 2228 | 837f1337c59b |
| permissions | -rw-r--r-- |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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.. -*- coding: utf-8; -*- |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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============= |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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Development |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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============= |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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.. contents:: |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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:local: |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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Numbers everyone should know |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
10 |
============================ |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
11 |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
12 |
* L1 cache reference 0.5 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
13 |
* Branch mispredict 5 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
14 |
* L2 cache reference 7 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
15 |
* Mutex lock/unlock 100 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
16 |
* Main memory reference 100 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
17 |
* Compress 1K bytes with Zippy 10,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
18 |
* Send 2K bytes over 1 Gbps network 20,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
19 |
* Read 1 MB sequentially from memory 250,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
20 |
* Round trip within same datacenter 500,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
21 |
* Disk seek 10,000,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
22 |
* Read 1 MB sequentially from network 10,000,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
23 |
* Read 1 MB sequentially from disk 30,000,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
24 |
* Send packet CA->Netherlands->CA 150,000,000 ns |
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fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
25 |