https://bluuewhale.github.io/tags/linux/Recent content in Linux on Bluue Whalehttps://bluuewhale.github.io/images/profile.jpghttps://bluuewhale.github.io/images/profile.jpgHugo -- 0.152.2en-usSat, 22 Aug 2026 22:21:36 +0900https://bluuewhale.github.io/posts/spinlock-vs-mutex-en/Fri, 12 Dec 2025 10:20:40 +0900https://bluuewhale.github.io/posts/spinlock-vs-mutex-en/Why a userspace spinlock spinning on CAS and a kernel-backed mutex going through futex end up suited to different workloads, explained through cache coherence.