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## Golang在GC的演进过程中也经历了很多次变革，Go V1.3之前的[标记-清除](https://zhida.zhihu.com/search?content_id=238158259&content_type=Article&match_order=1&q=%E6%A0%87%E8%AE%B0-%E6%B8%85%E9%99%A4&zd_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ6aGlkYV9zZXJ2ZXIiLCJleHAiOjE3NDI3OTg1ODcsInEiOiLmoIforrAt5riF6ZmkIiwiemhpZGFfc291cmNlIjoiZW50aXR5IiwiY29udGVudF9pZCI6MjM4MTU4MjU5LCJjb250ZW50X3R5cGUiOiJBcnRpY2xlIiwibWF0Y2hfb3JkZXIiOjEsInpkX3Rva2VuIjpudWxsfQ.L519Jm1YZEEQ1wuzajxX2OOBhbTH7DbPZHy8nn6Obns&zhida_source=entity)(mark and sweep)算法。Go V1.3之前的标记-清扫(mark and sweep)的缺点。
大家可以重点关注以下版本的变化：
- Go V1.5的[三色并发标记法](https://zhida.zhihu.com/search?content_id=238158259&content_type=Article&match_order=1&q=%E4%B8%89%E8%89%B2%E5%B9%B6%E5%8F%91%E6%A0%87%E8%AE%B0%E6%B3%95&zd_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ6aGlkYV9zZXJ2ZXIiLCJleHAiOjE3NDI3OTg1ODcsInEiOiLkuInoibLlubblj5HmoIforrDms5UiLCJ6aGlkYV9zb3VyY2UiOiJlbnRpdHkiLCJjb250ZW50X2lkIjoyMzgxNTgyNTksImNvbnRlbnRfdHlwZSI6IkFydGljbGUiLCJtYXRjaF9vcmRlciI6MSwiemRfdG9rZW4iOm51bGx9.uWrIm2OB1_oK7lijlD4chkrpuqwtlbJ3MTtVKVst36c&zhida_source=entity)
- Go V1.5的三色标记为什么需要STW
- Go V1.5的三色标记为什么需要[屏障机制](https://zhida.zhihu.com/search?content_id=238158259&content_type=Article&match_order=1&q=%E5%B1%8F%E9%9A%9C%E6%9C%BA%E5%88%B6&zd_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ6aGlkYV9zZXJ2ZXIiLCJleHAiOjE3NDI3OTg1ODcsInEiOiLlsY_pmpzmnLrliLYiLCJ6aGlkYV9zb3VyY2UiOiJlbnRpdHkiLCJjb250ZW50X2lkIjoyMzgxNTgyNTksImNvbnRlbnRfdHlwZSI6IkFydGljbGUiLCJtYXRjaF9vcmRlciI6MSwiemRfdG9rZW4iOm51bGx9.z_KFIcdz9agqmRw6oF9lyMLd_pCuwW8t9F3iG5Rf264&zhida_source=entity)(“强-弱” 三色不变式、插入屏障、删除屏障 )
- Go V1.8[混合写屏障](https://zhida.zhihu.com/search?content_id=238158259&content_type=Article&match_order=1&q=%E6%B7%B7%E5%90%88%E5%86%99%E5%B1%8F%E9%9A%9C&zd_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ6aGlkYV9zZXJ2ZXIiLCJleHAiOjE3NDI3OTg1ODcsInEiOiLmt7flkIjlhpnlsY_pmpwiLCJ6aGlkYV9zb3VyY2UiOiJlbnRpdHkiLCJjb250ZW50X2lkIjoyMzgxNTgyNTksImNvbnRlbnRfdHlwZSI6IkFydGljbGUiLCJtYXRjaF9vcmRlciI6MSwiemRfdG9rZW4iOm51bGx9.bbCbV48D0n6tpBTp3s-Ia-MV3I-tnPAEhS6Bg1JVFog&zhida_source=entity)机制
- Go V1.8混合写屏障机制的全场景分析