This shift has important effects:<\/p>\n
- \n
- Less Overhead \u2192 The OS has fewer drawers to manage, so bookkeeping becomes simpler and faster.<\/li>\n
- Faster Access \u2192 Reading\/writing requires fewer lookups.<\/li>\n
- More Cache-Friendly \u2192 Larger pages reduce Translation Lookaside Buffer (TLB) misses, improving CPU efficiency.<\/li>\n
- Slight Tradeoff \u2192 If you only need to store a small amount of data, bigger drawers may \u201cwaste\u201d unused space.<\/li>\n<\/ul>\n
![\"Visualization](\"https:\/\/tothenewco.pro\/blog\/wp-ttn-blog\/uploads\/2025\/09\/android_page_size_comparison-300x225.png\")
Visualization of page size<\/p><\/div>\n
How to Check Page Size on Your Device<\/h2>\n
Run this in an adb shell:<\/p>\n
\u00a0\r\nadb shell getconf PAGE_SIZE\r\n4096 \u2192 4 KB pages\r\n16384 \u2192 16 KB pages<\/pre>\n
Code-Level Considerations for Developers
\n1. Checking Page Size in Native Code (C\/C++)
\nIf you\u2019re using the NDK or writing custom allocators, check the page size dynamically:#include <unistd.h><\/p>\n#include <stdio.h>\r\n\r\nint main() {\r\nlong page_size = sysconf(_SC_PAGESIZE);\r\nprintf(\"Page size: %ld bytes\\n\", page_size);\r\nreturn 0;\r\n}<\/pre>\nThis ensures your app doesn\u2019t assume a fixed 4 KB page size.<\/p>\n
2. Kotlin\/Java Example<\/p>\n
import android.os.Build\r\nimport android.system.Os\r\n\r\nfun logPageSize() {\r\nval pageSize = Os.sysconf(Os._SC_PAGESIZE)\r\nprintln(\"Page size: $pageSize bytes\")\r\n\r\nif (pageSize == 16384L) {\r\nprintln(\"Running on a 16 KB page device\")\r\n} else {\r\nprintln(\"Running on a 4 KB page device\")\r\n}\r\n}<\/pre>\nCompatibility Challenges<\/strong><\/p>\n
- \n
- Some legacy native libraries may assume fixed 4 KB pages and could crash or behave unpredictably. Custom memory allocators may need adjustments.<\/li>\n
- Developers distributing apps outside Google Play may still need to adapt, since OEMs will ship more devices with 16 KB pages.<\/li>\n<\/ul>\n
Conclusion<\/strong><\/p>\n
Android is reorganizing memory into bigger drawers (16 KB pages). The result: less overhead, faster launches, and smoother overall performance. While invisible to users, this low-level change carries very real benefits.
\nFor developers, the clock is ticking: by November 2025, Play Store submissions must support 16 KB pages. Preparing now ensures your apps are ready for the next era of Android performance.<\/p>\n","protected":false},"excerpt":{"rendered":"Introduction Google is making a quiet but powerful change under the hood of Android: the default memory page size is shifting from 4 KB to 16 KB. At first glance, this may sound like a minor technical adjustment\u2014but in practice, it has wide-reaching effects on performance, battery efficiency, and app compatibility. Let\u2019s break down what\u2019s […]<\/p>\n","protected":false},"author":1555,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":28,"footnotes":""},"categories":[518],"tags":[4845,5538,8168],"class_list":["post-73626","post","type-post","status-publish","format-standard","hentry","category-android","tag-android","tag-androidtv","tag-pagesize"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t