{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:21:17Z","timestamp":1750306877134,"version":"3.41.0"},"reference-count":4,"publisher":"Association for Computing Machinery (ACM)","issue":"4","license":[{"start":{"date-parts":[[2012,11,1]],"date-time":"2012-11-01T00:00:00Z","timestamp":1351728000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"ERDF","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["SIGBED Rev."],"published-print":{"date-parts":[[2012,11]]},"abstract":"<jats:p>The mainline Linux Kernel is not designed for hard real-time systems; it only fits the requirements of soft real-time systems. In recent years, a kernel developer community has been working on the PREEMPT-RT patch. This patch (that aims to get a fully preemptible kernel) adds some real-time capabilities to the Linux kernel. However, in terms of scheduling policies, the real-time scheduling class of Linux is limited to the First-In-First-Out (SCHED_FIFO) and Round-Robin (SCHED_RR) scheduling policies. These scheduling policies are however quite limited in terms of real-time performance. Therefore, in this paper, we report one important contribution for adding more advanced real-time capabilities to the Linux Kernel. Specifically, we describe modifications to the (PREEMPT-RT patched) Linux kernel to support real-time slot-based task-splitting scheduling algorithms. Our preliminary evaluation shows that our implementation exhibits a real-time performance that is superior to the scheduling policies provided by the current version of PREMPT-RT. This is a significant add-on to a widely adopted operating system.<\/jats:p>","DOI":"10.1145\/2452537.2452546","type":"journal-article","created":{"date-parts":[[2013,3,25]],"date-time":"2013-03-25T13:31:59Z","timestamp":1364218319000},"page":"45-48","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Enhancing the real-time capabilities of the Linux kernel"],"prefix":"10.1145","volume":"9","author":[{"given":"Paulo Baltarejo","family":"Sousa","sequence":"first","affiliation":[{"name":"CISTER\/INESC-TEC, ISEP, Polytechnic Institute of Porto, Porto, Portugal"}]},{"given":"Nuno","family":"Pereira","sequence":"additional","affiliation":[{"name":"CISTER\/INESC-TEC, ISEP, Polytechnic Institute of Porto, Porto, Portugal"}]},{"given":"Eduardo","family":"Tovar","sequence":"additional","affiliation":[{"name":"CISTER\/INESC-TEC, ISEP, Polytechnic Institute of Porto, Porto, Portugal"}]}],"member":"320","published-online":{"date-parts":[[2012,11]]},"reference":[{"key":"e_1_2_1_1_1","unstructured":"Tilera \"TILE-Gx processor family overview \" http:\/\/www.tilera.com\/products\/processors\/TILE-Gx_Family.  Tilera \"TILE-Gx processor family overview \" http:\/\/www.tilera.com\/products\/processors\/TILE-Gx_Family."},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/RTCSA.2006.45"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/RTAS.2009.25"},{"key":"e_1_2_1_4_1","first-page":"207","volume-title":"Prague","author":"Sousa P. B.","year":"2011","unstructured":"P. B. Sousa , K. Bletsas , E. Tovar , and B. Andersson , \" On the implementation of real-time slot-based task-splitting scheduling algorithms for multiprocessor systems,\" in Proc. of the 13th Real-Time Linux Workshop (RTLWS'13) , Prague , Czech Republic , 2011 , pp. 207 -- 218 . P. B. Sousa, K. Bletsas, E. Tovar, and B. Andersson, \"On the implementation of real-time slot-based task-splitting scheduling algorithms for multiprocessor systems,\" in Proc. of the 13th Real-Time Linux Workshop (RTLWS'13), Prague, Czech Republic, 2011, pp. 207--218."}],"container-title":["ACM SIGBED Review"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2452537.2452546","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/2452537.2452546","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T08:18:26Z","timestamp":1750234706000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2452537.2452546"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,11]]},"references-count":4,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2012,11]]}},"alternative-id":["10.1145\/2452537.2452546"],"URL":"https:\/\/doi.org\/10.1145\/2452537.2452546","relation":{},"ISSN":["1551-3688"],"issn-type":[{"type":"electronic","value":"1551-3688"}],"subject":[],"published":{"date-parts":[[2012,11]]},"assertion":[{"value":"2012-11-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}