update benchmark table to include PHP 8.4

terrafrost · terrafrost · commit 18242fa4e63c · 2025-06-13T14:36:21.000-05:00
also explain BCMath's speed improvements
diff --git a/docs/speed.md b/docs/speed.md
@@ -25,25 +25,32 @@ The benchmarks were [performed on GitHub Actions](https://github.com/phpseclib/b
     <tr><td style="border: 0; background: white"></td><td colspan="3" style="background: wheat; font-weight: normal; text-align: center">w/o OpenSSL</td><td colspan="3" style="background: wheat; font-weight: normal; text-align: center">w/ OpenSSL</td><td style="border: 0; background: white"></td></tr>
   </thead>
   <tbody>
-<tr><td style="background: yellow"><b>PHP 4.4</b></td><td style="background: #ff9090">7.084</td></td><td style="background: #ff6262">4.538</td></td><td style="background: #ffb0b0">2.301</td></td><td style="background: #ffe8e8">0.685</td></td><td style="background: #ffebeb">0.584</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.0</b></td><td style="background: #ff0000">7.338</td></td><td style="background: #ff5a5a">4.756</td></td><td style="background: #ffb0b0">2.290</td></td><td style="background: #ffe7e7">0.713</td></td><td style="background: #ffeaea">0.605</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.1</b></td><td style="background: #ff8f8f">3.236</td></td><td style="background: #ffb9b9">2.031</td></td><td style="background: #ffb2b2">2.240</td></td><td style="background: #fff1f1">0.403</td></td><td style="background: #fff4f4">0.335</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.2</b></td><td style="background: #ff8080">3.674</td></td><td style="background: #ffb9b9">2.040</td></td><td style="background: #ffb2b2">2.235</td></td><td style="background: #fff3f3">0.366</td></td><td style="background: #fff4f4">0.321</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.3</b></td><td style="background: #ff8d8d">3.281</td></td><td style="background: #ffbcbc">1.942</td></td><td style="background: #ffb1b1">2.267</td></td><td style="background: #fff3f3">0.351</td></td><td style="background: #fff5f5">0.293</td></td><td style="background: #fffefe">0.057</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.4</b></td><td style="background: #ffb8b8">2.053</td></td><td style="background: #ffd4d4">1.239</td></td><td style="background: #ffb1b1">2.267</td></td><td style="background: #fff7f7">0.249</td></td><td style="background: #fff8f8">0.209</td></td><td style="background: #fffefe">0.057</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.5</b></td><td style="background: #ffb9b9">2.026</td></td><td style="background: #ffd8d8">1.134</td></td><td style="background: #ffb0b0">2.282</td></td><td style="background: #fff6f6">0.262</td></td><td style="background: #fff8f8">0.202</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.6</b></td><td style="background: #ffbcbc">1.942</td></td><td style="background: #ffd7d7">1.161</td></td><td style="background: #ffaeae">2.351</td></td><td style="background: #fff7f7">0.256</td></td><td style="background: #fff8f8">0.209</td></td><td style="background: #fffefe">0.056</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 7.0</b></td><td style="background: #ffe0e0">0.907</td></td><td style="background: #ffecec">0.551</td></td><td style="background: #ffb0b0">2.275</td></td><td style="background: #fffcfc">0.089</td></td><td style="background: #fffdfd">0.074</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 7.1</b></td><td style="background: #ffe4e4">0.783</td></td><td style="background: #ffeeee">0.501</td></td><td style="background: #ffafaf">2.303</td></td><td style="background: #fffdfd">0.085</td></td><td style="background: #fffdfd">0.069</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 7.2</b></td><td style="background: #ffe8e8">0.684</td></td><td style="background: #fff0f0">0.448</td></td><td style="background: #ffafaf">2.303</td></td><td style="background: #fffdfd">0.065</td></td><td style="background: #fffefe">0.056</td></td><td style="background: #fffefe">0.054</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 7.3</b></td><td style="background: #ffe8e8">0.681</td></td><td style="background: #fff0f0">0.446</td></td><td style="background: #ffb0b0">2.294</td></td><td style="background: #fffdfd">0.072</td></td><td style="background: #fffefe">0.054</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 7.4</b></td><td style="background: #ffeaea">0.609</td></td><td style="background: #fff2f2">0.393</td></td><td style="background: #ffaeae">2.343</td></td><td style="background: #fffdfd">0.059</td></td><td style="background: #fffefe">0.050</td></td><td style="background: #fffdfd">0.061</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 8.0</b></td><td style="background: #ffe9e9">0.643</td></td><td style="background: #fff1f1">0.411</td></td><td style="background: #ffb2b2">2.237</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #fffefe">0.050</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 8.1</b></td><td style="background: #ffeaea">0.624</td></td><td style="background: #fff1f1">0.416</td></td><td style="background: #ffb2b2">2.222</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.2</b></td><td style="background: #ffeaea">0.616</td></td><td style="background: #fff2f2">0.401</td></td><td style="background: #ffb2b2">2.218</td></td><td style="background: #fffdfd">0.059</td></td><td style="background: #fffefe">0.051</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.3</b></td><td style="background: #ffeaea">0.630</td></td><td style="background: #fff1f1">0.419</td></td><td style="background: #ffb3b3">2.197</td></td><td style="background: #fffdfd">0.063</td></td><td style="background: #fffefe">0.051</td></td><td style="background: #fffefe">0.051</td></td><td style="background: #ffffff">0.002</td></td></tr></tbody></table>
-
+<tr><td style="background: yellow"><b>PHP 4.4</b></td><td style="background: #ffd0d0">7.033</td></td><td style="background: #ff6161">4.606</td></td><td style="background: #ffb0b0">2.310</td></td><td style="background: #ffe7e7">0.710</td></td><td style="background: #ffebeb">0.587</td></td><td style="background: #fffdfd">0.062</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.0</b></td><td style="background: #ff0000">7.396</td></td><td style="background: #ff5959">4.825</td></td><td style="background: #ffb1b1">2.265</td></td><td style="background: #ffe6e6">0.749</td></td><td style="background: #ffeaea">0.617</td></td><td style="background: #fffdfd">0.061</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.1</b></td><td style="background: #ff8e8e">3.278</td></td><td style="background: #ffbaba">2.024</td></td><td style="background: #ffb2b2">2.257</td></td><td style="background: #fff2f2">0.403</td></td><td style="background: #fff3f3">0.352</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.2</b></td><td style="background: #ff8181">3.666</td></td><td style="background: #ffb7b7">2.092</td></td><td style="background: #ffb2b2">2.244</td></td><td style="background: #fff3f3">0.368</td></td><td style="background: #fff5f5">0.316</td></td><td style="background: #fffdfd">0.058</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.3</b></td><td style="background: #ff8e8e">3.288</td></td><td style="background: #ffbdbd">1.939</td></td><td style="background: #ffb1b1">2.276</td></td><td style="background: #fff3f3">0.356</td></td><td style="background: #fff5f5">0.297</td></td><td style="background: #fffefe">0.058</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.4</b></td><td style="background: #ffb8b8">2.067</td></td><td style="background: #ffd5d5">1.242</td></td><td style="background: #ffb1b1">2.288</td></td><td style="background: #fff7f7">0.254</td></td><td style="background: #fff8f8">0.209</td></td><td style="background: #fffdfd">0.059</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.5</b></td><td style="background: #ffb8b8">2.060</td></td><td style="background: #ffd6d6">1.200</td></td><td style="background: #ffb0b0">2.314</td></td><td style="background: #fff7f7">0.249</td></td><td style="background: #fff8f8">0.205</td></td><td style="background: #fffefe">0.058</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 5.6</b></td><td style="background: #ffbbbb">1.989</td></td><td style="background: #ffd6d6">1.192</td></td><td style="background: #ffb0b0">2.311</td></td><td style="background: #fff7f7">0.243</td></td><td style="background: #fff8f8">0.206</td></td><td style="background: #fffefe">0.057</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 7.0</b></td><td style="background: #ffe0e0">0.908</td></td><td style="background: #ffeded">0.548</td></td><td style="background: #ffb1b1">2.282</td></td><td style="background: #fffcfc">0.089</td></td><td style="background: #fffdfd">0.073</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 7.1</b></td><td style="background: #ffe5e5">0.773</td></td><td style="background: #ffeeee">0.500</td></td><td style="background: #ffb0b0">2.305</td></td><td style="background: #fffdfd">0.082</td></td><td style="background: #fffdfd">0.072</td></td><td style="background: #fffefe">0.056</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 7.2</b></td><td style="background: #ffe7e7">0.701</td></td><td style="background: #fff0f0">0.460</td></td><td style="background: #ffb0b0">2.314</td></td><td style="background: #fffdfd">0.064</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 7.3</b></td><td style="background: #ffe8e8">0.683</td></td><td style="background: #fff0f0">0.445</td></td><td style="background: #ffb0b0">2.305</td></td><td style="background: #fffdfd">0.063</td></td><td style="background: #fffefe">0.054</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 7.4</b></td><td style="background: #ffeaea">0.614</td></td><td style="background: #fff2f2">0.403</td></td><td style="background: #ffafaf">2.349</td></td><td style="background: #fffdfd">0.059</td></td><td style="background: #fffefe">0.050</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.0</b></td><td style="background: #ffe9e9">0.642</td></td><td style="background: #fff1f1">0.415</td></td><td style="background: #ffb2b2">2.251</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.001</td></td></tr><tr><td style="background: yellow"><b>PHP 8.1</b></td><td style="background: #ffe9e9">0.642</td></td><td style="background: #fff1f1">0.416</td></td><td style="background: #ffb2b2">2.234</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #fffefe">0.051</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.003</td></td></tr><tr><td style="background: yellow"><b>PHP 8.2</b></td><td style="background: #ffeaea">0.619</td></td><td style="background: #fff1f1">0.407</td></td><td style="background: #ffb2b2">2.235</td></td><td style="background: #fffdfd">0.060</td></td><td style="background: #fffefe">0.051</td></td><td style="background: #fffefe">0.054</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.3</b></td><td style="background: #ffe9e9">0.646</td></td><td style="background: #fff1f1">0.417</td></td><td style="background: #ffb3b3">2.205</td></td><td style="background: #fffdfd">0.061</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.4</b></td><td style="background: #ffeaea">0.634</td></td><td style="background: #fff1f1">0.417</td></td><td style="background: #fffefe">0.056</td></td><td style="background: #fffdfd">0.061</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.010</td></td><td style="background: #ffffff">0.002</td></td></tr></tbody></table>
 
 ## Benchmarks with JIT
 
 PHP 8 [introduced](https://wiki.php.net/rfc/jit) a new [Just-In-Time (JIT) compilation](https://en.wikipedia.org/wiki/Just-in-time_compilation) engine. The specific JIT settings that were used can be seen in the Docker containers [opcache.ini](https://github.com/phpseclib/docker-php/blob/8.0jit/opcache.ini).
 
+<!--
+PHP 8.4 introduced a new [JIT implementation based on the IR framework](https://wiki.php.net/rfc/jit-ir) but it doesn't seem to have amounted to much improvement gain where phpseclib is concerned.
+-->
+
 <table border="1">
   <thead>
     <tr><td style="border: 0; background: white"></td><td>PHP32</td><td>PHP64</td><td>BCMath</td><td>PHP32</td><td>PHP64</td><td>BCMath</td><td>GMP</td></tr>
     <tr><td style="border: 0; background: white"></td><td colspan="3" style="background: wheat; font-weight: normal; text-align: center">w/o OpenSSL</td><td colspan="3" style="background: wheat; font-weight: normal; text-align: center">w/ OpenSSL</td><td style="border: 0; background: white"></td></tr>
   </thead>
   <tbody>
-<tr><td style="background: yellow"><b>PHP 8.0</b></td><td style="background: #fff8f8">0.210</td></td><td style="background: #fffcfc">0.100</td></td><td style="background: #ffb1b1">2.247</td></td><td style="background: #fffefe">0.032</td></td><td style="background: #ffffff">0.028</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.1</b></td><td style="background: #fff9f9">0.188</td></td><td style="background: #fffcfc">0.087</td></td><td style="background: #ffb2b2">2.228</td></td><td style="background: #fffefe">0.033</td></td><td style="background: #fffefe">0.029</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.2</b></td><td style="background: #fff9f9">0.197</td></td><td style="background: #fffcfc">0.087</td></td><td style="background: #ffb2b2">2.222</td></td><td style="background: #fffefe">0.032</td></td><td style="background: #ffffff">0.028</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.3</b></td><td style="background: #fff9f9">0.189</td></td><td style="background: #fffcfc">0.089</td></td><td style="background: #ffb3b3">2.202</td></td><td style="background: #fffefe">0.032</td></td><td style="background: #fffefe">0.029</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #ffffff">0.002</td></td></tr></tbody></table>
+<tr><td style="background: yellow"><b>PHP 8.0</b></td><td style="background: #fff8f8">0.204</td></td><td style="background: #fffcfc">0.103</td></td><td style="background: #ffb2b2">2.255</td></td><td style="background: #fffefe">0.032</td></td><td style="background: #ffffff">0.029</td></td><td style="background: #fffefe">0.053</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.1</b></td><td style="background: #fff9f9">0.190</td></td><td style="background: #fffdfd">0.087</td></td><td style="background: #ffb2b2">2.234</td></td><td style="background: #fffefe">0.033</td></td><td style="background: #ffffff">0.029</td></td><td style="background: #fffefe">0.055</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.2</b></td><td style="background: #fff9f9">0.188</td></td><td style="background: #fffcfc">0.089</td></td><td style="background: #ffb2b2">2.238</td></td><td style="background: #fffefe">0.033</td></td><td style="background: #fffefe">0.042</td></td><td style="background: #fffefe">0.054</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.3</b></td><td style="background: #fff9f9">0.189</td></td><td style="background: #fffcfc">0.087</td></td><td style="background: #ffb3b3">2.207</td></td><td style="background: #fffefe">0.033</td></td><td style="background: #ffffff">0.029</td></td><td style="background: #fffefe">0.052</td></td><td style="background: #ffffff">0.002</td></td></tr><tr><td style="background: yellow"><b>PHP 8.4</b></td><td style="background: #fff9f9">0.179</td></td><td style="background: #fffdfd">0.087</td></td><td style="background: #fffefe">0.058</td></td><td style="background: #fffefe">0.036</td></td><td style="background: #fffefe">0.032</td></td><td style="background: #ffffff">0.012</td></td><td style="background: #ffffff">0.002</td></td></tr></tbody></table>
 
 ## GMP Engine
 
 [GMP](http://en.wikipedia.org/wiki/GNU_Multiple_Precision_Arithmetic_Library), to quote wikipedia, "_aims to be faster than any other bignum library_", using "_highly optimized assembly language code_".
 
+## BCMath
+
+BCMath was _significantly_ sped up in PHP 8.4. [BCMath Performance Improvement Explanation](https://speakerdeck.com/sakitakamachi/bcmath-performance-improvement-explanation) (in Japanese) explains how this was done.
+
 ## PHP32 / PHP64
 
 These days, most systems are 64-bit, however, a notable exception are [Raspberry Pi](https://en.wikipedia.org/wiki/Raspberry_Pi_OS)'s.
