MyFavMirrors/minio
1
0
Fork 0
mirror of https://github.com/minio/minio.git synced 2025-11-20 01:50:24 -05:00
Code Issues Packages Projects Releases Wiki Activity

[feat]: change erasure coding default block size from 10MiB to 1MiB (#11721)

Browse Source 
major performance improvements in range GETs to avoid large
read amplification when ranges are tiny and random

```
-------------------
Operation: GET
Operations: 142014 -> 339421
Duration: 4m50s -> 4m56s
* Average: +139.41% (+1177.3 MiB/s) throughput, +139.11% (+658.4) obj/s
* Fastest: +125.24% (+1207.4 MiB/s) throughput, +132.32% (+612.9) obj/s
* 50% Median: +139.06% (+1175.7 MiB/s) throughput, +133.46% (+660.9) obj/s
* Slowest: +203.40% (+1267.9 MiB/s) throughput, +198.59% (+753.5) obj/s
```

TTFB from 10MiB BlockSize
```
* First Access TTFB: Avg: 81ms, Median: 61ms, Best: 20ms, Worst: 2.056s
```

TTFB from 1MiB BlockSize
```
* First Access TTFB: Avg: 22ms, Median: 21ms, Best: 8ms, Worst: 91ms
```

Full object reads however do see a slight change which won't be
noticeable in real world, so not doing any comparisons

TTFB still had improvements with full object reads with 1MiB

```
* First Access TTFB: Avg: 68ms, Median: 35ms, Best: 11ms, Worst: 1.16s
```

v/s

TTFB with 10MiB
```
* First Access TTFB: Avg: 388ms, Median: 98ms, Best: 20ms, Worst: 4.156s
```

This change should affect all new uploads, previous uploads should
continue to work with business as usual. But dramatic improvements can
be seen with these changes.
This commit is contained in:
Harshavardhana
2021-03-06 14:09:34 -08:00
committed by GitHub
parent abce040088
commit 9ccc483df6
15 changed files with 150 additions and 135 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
cmd/utils.go
View File

@@ -451,6 +451,8 @@ func newInternodeHTTPTransport(tlsConfig *tls.Config, dialTimeout time.Duration)
Proxy: http.ProxyFromEnvironment,
DialContext: xhttp.DialContextWithDNSCache(globalDNSCache, xhttp.NewInternodeDialContext(dialTimeout)),
MaxIdleConnsPerHost: 1024,
WriteBufferSize: 32 << 10, // 32KiB moving up from 4KiB default
ReadBufferSize: 32 << 10, // 32KiB moving up from 4KiB default
IdleConnTimeout: 15 * time.Second,
ResponseHeaderTimeout: 3 * time.Minute, // Set conservative timeouts for MinIO internode.
TLSHandshakeTimeout: 15 * time.Second,
@@ -496,6 +498,8 @@ func newCustomHTTPProxyTransport(tlsConfig *tls.Config, dialTimeout time.Duratio
Proxy: http.ProxyFromEnvironment,
DialContext: xhttp.DialContextWithDNSCache(globalDNSCache, xhttp.NewInternodeDialContext(dialTimeout)),
MaxIdleConnsPerHost: 1024,
WriteBufferSize: 16 << 10, // 16KiB moving up from 4KiB default
ReadBufferSize: 16 << 10, // 16KiB moving up from 4KiB default
IdleConnTimeout: 15 * time.Second,
ResponseHeaderTimeout: 30 * time.Minute, // Set larger timeouts for proxied requests.
TLSHandshakeTimeout: 10 * time.Second,
@@ -558,6 +562,8 @@ func newCustomHTTPTransport(tlsConfig *tls.Config, dialTimeout time.Duration) fu
Proxy: http.ProxyFromEnvironment,
DialContext: xhttp.DialContextWithDNSCache(globalDNSCache, xhttp.NewInternodeDialContext(dialTimeout)),
MaxIdleConnsPerHost: 1024,
WriteBufferSize: 16 << 10, // 16KiB moving up from 4KiB default
ReadBufferSize: 16 << 10, // 16KiB moving up from 4KiB default
IdleConnTimeout: 15 * time.Second,
ResponseHeaderTimeout: 3 * time.Minute, // Set conservative timeouts for MinIO internode.
TLSHandshakeTimeout: 10 * time.Second,