--- title: New Linux Patches Aim To Better Handle Multiple Swap Devices description: A new RFC patch series from Tencent engineer Kairui Song proposes a redesign of Linux kernel swap device handling to better support multiple swap devices. The... canonical: https://daily.dev/posts/new-linux-patches-aim-to-better-handle-multiple-swap-devices-ki8er1gq5 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: New Linux Patches Aim To Better Handle Multiple Swap Devices | daily.dev og:description: A new RFC patch series from Tencent engineer Kairui Song proposes a redesign of Linux kernel swap device handling to better support multiple swap devices. The... og:url: https://daily.dev/posts/new-linux-patches-aim-to-better-handle-multiple-swap-devices-ki8er1gq5 og:image: https://api.daily.dev/og/posts/KI8Er1gq5.png og:image:alt: New Linux Patches Aim To Better Handle Multiple Swap Devices og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # New Linux Patches Aim To Better Handle Multiple Swap Devices **[Phoronix](https://daily.dev/sources/phoronix)** · 3 min read · 0 upvotes · 0 comments ## Summary A new RFC patch series from Tencent engineer Kairui Song proposes a redesign of Linux kernel swap device handling to better support multiple swap devices. The patches introduce a per-CPU reader priority queue to replace the mutable plist and global lock, enabling fairer I/O distribution across swap devices. This addresses four long-standing design issues: conflicts with swap tiering concepts, global lock contention during round-robin rotation, suboptimal slow-path design, and unpredictable rotation block sizes. The work is particularly relevant for swap tiering and layered swap configurations common in complex server deployments. ## Full article daily.dev links to this article rather than hosting it. 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