| author | Oleksandr Gavenko <gavenkoa@gmail.com> |
| Mon, 22 Feb 2016 13:12:06 +0200 | |
| changeset 1908 | 0260f8ffef35 |
| parent 1905 | fba288d59662 |
| child 1912 | 8b81a8f0f692 |
| permissions | -rw-r--r-- |
|
1905
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
1 |
.. -*- coding: utf-8; -*- |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
2 |
.. include:: HEADER.rst |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
3 |
|
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
4 |
============= |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
5 |
Development |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
6 |
============= |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
7 |
.. contents:: |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
8 |
:local: |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
9 |
|
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
10 |
Numbers everyone should know |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
11 |
============================ |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
12 |
|
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
13 |
* L1 cache reference 0.5 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
14 |
* Branch mispredict 5 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
15 |
* L2 cache reference 7 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
16 |
* Mutex lock/unlock 100 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
17 |
* Main memory reference 100 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
18 |
* Compress 1K bytes with Zippy 10,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
19 |
* Send 2K bytes over 1 Gbps network 20,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
20 |
* Read 1 MB sequentially from memory 250,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
21 |
* Round trip within same datacenter 500,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
22 |
* Disk seek 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 network 10,000,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
24 |
* 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
|
25 |
* Send packet CA->Netherlands->CA 150,000,000 ns |
|
fba288d59662
Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
26 |