v2.8.4

Add compatibility with go 1.22 #17 @Aoang

v2.8.3

Add Size() function which returns the number of items in the queue at any given time

v2.8.2

Add support for ppc64 and s390x CPU architectures

Fix assembly for 32 bit ARM devices

Fix the assembly code in asm_arm.s and measure ZenQ's performance against channels for a low-end device (32 bit raspberry pi)

Device Info

  `.::///+:/-.        --///+//-:``    alphadose@neverwinter
 `+oooooooooooo:   `+oooooooooooo:    -------------------
  /oooo++//ooooo:  ooooo+//+ooooo.    OS: Raspbian GNU/Linux 11 (bullseye) armv7l
  `+ooooooo:-:oo-  +o+::/ooooooo:     Host: Raspberry Pi 4 Model B Rev 1.5
   `:oooooooo+``    `.oooooooo+-      Kernel: 5.15.32-v7l+
     `:++ooo/.        :+ooo+/.`       Uptime: 1 hour, 58 mins
        ...`  `.----.` ``..           Packages: 569 (dpkg)
     .::::-``:::::::::.`-:::-`        Shell: bash 5.1.4
    -:::-`   .:::::::-`  `-:::-       Terminal: /dev/pts/0
   `::.  `.--.`  `` `.---.``.::`      CPU: BCM2711 (4) @ 1.800GHz
       .::::::::`  -::::::::` `       Memory: 68MiB / 3838MiB
 .::` .:::::::::- `::::::::::``::.
-:::` ::::::::::.  ::::::::::.`:::-
::::  -::::::::.   `-::::::::  ::::
-::-   .-:::-.``....``.-::-.   -::-
 .. ``       .::::::::.     `..`..
   -:::-`   -::::::::::`  .:::::`
   :::::::` -::::::::::` :::::::.
   .:::::::  -::::::::. ::::::::
    `-:::::`   ..--.`   ::::::.
      `...`  `...--..`  `...`
            .::::::::::
             `.-::::-`

Benchstat of 20 runs

goos: linux
goarch: arm
name                                     time/op
_Chan_NumWriters1_InputSize600-4          230µs ± 4%
_ZenQ_NumWriters1_InputSize600-4          186µs ± 5%
_Chan_NumWriters3_InputSize60000-4       28.2ms ± 3%
_ZenQ_NumWriters3_InputSize60000-4       12.8ms ± 0%
_Chan_NumWriters8_InputSize6000000-4      4.14s ±10%
_ZenQ_NumWriters8_InputSize6000000-4      1.32s ± 1%
_Chan_NumWriters100_InputSize6000000-4    5.97s ± 5%
_ZenQ_NumWriters100_InputSize6000000-4    1.48s ± 5%
_Chan_NumWriters1000_InputSize7000000-4   7.23s ± 6%
_ZenQ_NumWriters1000_InputSize7000000-4   2.09s ± 4%
_Chan_Million_Blocking_Writers-4          20.3s ± 2%
_ZenQ_Million_Blocking_Writers-4          6.96s ± 4%

name                                     alloc/op
_Chan_NumWriters1_InputSize600-4          0.00B
_ZenQ_NumWriters1_InputSize600-4          0.00B
_Chan_NumWriters3_InputSize60000-4         227B ±27%
_ZenQ_NumWriters3_InputSize60000-4        77.9B ±91%
_Chan_NumWriters8_InputSize6000000-4      499B ±189%
_ZenQ_NumWriters8_InputSize6000000-4     1.49kB ± 4%
_Chan_NumWriters100_InputSize6000000-4   27.5kB ±19%
_ZenQ_NumWriters100_InputSize6000000-4   27.7kB ±42%
_Chan_NumWriters1000_InputSize7000000-4   290kB ± 5%
_ZenQ_NumWriters1000_InputSize7000000-4   135kB ± 8%
_Chan_Million_Blocking_Writers-4          325MB ± 0%
_ZenQ_Million_Blocking_Writers-4         76.2MB ± 3%

name                                     allocs/op
_Chan_NumWriters1_InputSize600-4           0.00
_ZenQ_NumWriters1_InputSize600-4           0.00
_Chan_NumWriters3_InputSize60000-4         1.00 ± 0%
_ZenQ_NumWriters3_InputSize60000-4         0.00
_Chan_NumWriters8_InputSize6000000-4      4.30 ±109%
_ZenQ_NumWriters8_InputSize6000000-4       19.2 ± 9%
_Chan_NumWriters100_InputSize6000000-4      171 ±13%
_ZenQ_NumWriters100_InputSize6000000-4      194 ±25%
_Chan_NumWriters1000_InputSize7000000-4   1.84k ± 3%
_ZenQ_NumWriters1000_InputSize7000000-4   1.09k ± 4%
_Chan_Million_Blocking_Writers-4          2.00M ± 0%
_ZenQ_Million_Blocking_Writers-4          1.00M ± 0%

Conclusion -> ZenQ scales better even in low-end devices

Improve selection performance

• Lowered the memory required by each selection object
• Lowered the burden on selection reader goroutine leading to better latencies

Use golang 1.19 new native atomic types

v2.7.1

shift list to native atomic types

Performance Improvements

v2.7.0

refactor

List /v2 module to go-proxy

v2.6.3

update versioning

Minor Optimization

v2.6.2

update version

Improve slot determination performance

2.6.1

minor perf improvement