diff options
| author | Niall Douglas (s [underscore] sourceforge {at} nedprod [dot] com) <spamtrap@nedprod.com> | 2017-08-28 19:17:25 +0300 |
|---|---|---|
| committer | Niall Douglas (s [underscore] sourceforge {at} nedprod [dot] com) <spamtrap@nedprod.com> | 2017-08-28 19:17:25 +0300 |
| commit | 71632c273d167e5de0de273bd5bc2d426fda64c4 (patch) | |
| tree | 570f9ede30b922bd9cf2da4b61fb82bd5b131198 /release_notes.md | |
| parent | 2d807ea2643b89aa106b7556f279672653e3d64e (diff) | |
Minor fixes to safe_byte_ranges, but will need to wait to tonight with a proper POSIX machine to debug.
Diffstat (limited to 'release_notes.md')
| -rw-r--r-- | release_notes.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/release_notes.md b/release_notes.md index 80978374..81538af1 100644 --- a/release_notes.md +++ b/release_notes.md @@ -35,7 +35,7 @@ Manufacturer claimed 4Kb transfer latencies for the physical hardware: - < 99% SATA flash drive latency: Windows **290us** Linux **158us** - < 99% NVMe drive latency: Windows **150us** FreeBSD **70us** Linux **30us** -Lowest achievable 4Kb read latency benchmarked to date by author: **0.19us** (5.3M IOPS @ QD1, approx 20Gb/sec) +Empirical AFIO read latency benchmarked by author: **0.19us** (5.3M IOPS @ QD1, approx 20Gb/sec) </td> <td valign="top" width="33%"> 75% read 25% write QD4 4Kb direct transfer latencies for the software with AFIO: @@ -43,7 +43,7 @@ Lowest achievable 4Kb read latency benchmarked to date by author: **0.19us** (5. - < 99% SATA flash drive latency: Windows **1,812us** Linux **1,416us** - < 99% NVMe drive latency: Windows **95us** FreeBSD **143us** Linux **40us** -Lowest achievable 4Kb write latency benchmarked to date by author: **0.18us** (5.6M IOPS @ QD1, approx 21Gb/sec) +Empirical AFIO write latency benchmarked by author: **0.18us** (5.6M IOPS @ QD1, approx 21Gb/sec) </td> </tr> </table> @@ -142,6 +142,7 @@ Todo: | ✔ | ✔ | ✔ | Universal portable UTF-8 path views. | | ✔ | ✔ | "Hole punching" and hole enumeration ported over from AFIO v1. | | ✔ | ✔ | Directory handles and very fast directory enumeration ported over from AFIO v1. +| ✔ | ✔ | ✔ | `shared_fs_mutex` shared/exclusive entities locking based on safe byte ranges Todo to reach feature parity with AFIO v1: |