We argue that a new OS for a multicore machine should be designed ground-up as a distributed system, using concepts from that \ufb01eld. Modern hardware resembles a networked system even more than past large multiprocessors: in addition to familiar latency e\ufb00ects, it exhibits node heterogeneity and dynamic membership changes.<\/p>\n
Cache coherence protocols encourage OS designers to selectively ignore this, except for limited performance reasons. Commodity OS designs have mostly assumed \ufb01xed, uniform CPU architectures and memory systems.<\/p>\n","protected":false},"excerpt":{"rendered":"
We argue that a new OS for a multicore machine should be designed ground-up as a distributed system, using concepts from that \ufb01eld. Modern hardware resembles a networked system even more than past large multiprocessors: in addition to familiar latency e\ufb00ects, it exhibits node heterogeneity and dynamic membership changes. Cache coherence protocols encourage OS designers […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","footnotes":""},"msr-content-type":[3],"msr-research-highlight":[],"research-area":[13547],"msr-publication-type":[193716],"msr-product-type":[],"msr-focus-area":[],"msr-platform":[],"msr-download-source":[],"msr-locale":[268875],"msr-post-option":[],"msr-field-of-study":[],"msr-conference":[],"msr-journal":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-158043","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-systems-and-networking","msr-locale-en_us"],"msr_publishername":"USENIX","msr_edition":"","msr_affiliation":"","msr_published_date":"2009-5-1","msr_host":"","msr_duration":"","msr_version":"","msr_speaker":"","msr_other_contributors":"","msr_booktitle":"","msr_pages_string":"","msr_chapter":"","msr_isbn":"","msr_journal":"","msr_volume":"","msr_number":"","msr_editors":"","msr_series":"","msr_issue":"","msr_organization":"","msr_how_published":"","msr_notes":"","msr_highlight_text":"","msr_release_tracker_id":"","msr_original_fields_of_study":"","msr_download_urls":"","msr_external_url":"","msr_secondary_video_url":"","msr_longbiography":"","msr_microsoftintellectualproperty":1,"msr_main_download":"224011","msr_publicationurl":"","msr_doi":"","msr_publication_uploader":[{"type":"file","viewUrl":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2009\/05\/barrelfish_hotos09.pdf","id":"224011","title":"barrelfish_hotos09.pdf","label_id":"243109","label":0}],"msr_related_uploader":"","msr_attachments":[{"id":224011,"url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2009\/05\/barrelfish_hotos09.pdf"}],"msr-author-ordering":[{"type":"user_nicename","value":"Andrew Baumann","user_id":31181,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=Andrew Baumann"},{"type":"text","value":"Simon Peter","user_id":0,"rest_url":false},{"type":"text","value":"Adrian Sch\u00fcpbach","user_id":0,"rest_url":false},{"type":"text","value":"Akhilesh Singhania","user_id":0,"rest_url":false},{"type":"text","value":"Timothy Roscoe","user_id":0,"rest_url":false},{"type":"user_nicename","value":"Paul Barham","user_id":33217,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=Paul Barham"},{"type":"user_nicename","value":"Rebecca Isaacs","user_id":33411,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=Rebecca Isaacs"}],"msr_impact_theme":[],"msr_research_lab":[],"msr_event":[],"msr_group":[144927],"msr_project":[170320],"publication":[],"video":[],"download":[],"msr_publication_type":"inproceedings","related_content":{"projects":[{"ID":170320,"post_title":"Barrelfish","post_name":"barrelfish","post_type":"msr-project","post_date":"2009-08-26 06:02:43","post_modified":"2017-06-01 18:35:06","post_status":"publish","permalink":"https:\/\/www.microsoft.com\/en-us\/research\/project\/barrelfish\/","post_excerpt":"Barrelfish is a new operating system being built from scratch in a collaboration between researchers at ETH Zurich and Microsoft Research, Cambridge. 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