LWN.net's Journal
[Most Recent Entries]
[Calendar View]
Tuesday, March 14th, 2017
| Time |
Event |
| 4:00p |
Security updates for Tuesday
Security updates have been issued by Arch Linux (linux-grsec and linux-lts), Debian (icoutils, imagemagick, and roundcube), Fedora (freetype, libupnp, libwmf, thunderbird, tor, and w3m), Red Hat (chromium-browser and thunderbird), Scientific Linux (thunderbird), and Ubuntu (icoutils, icu, libevent, pidgin, pillow, and python-imaging). | | 5:29p |
[$] A deadline scheduler update
The deadline CPU scheduler has come a long way, Juri Lelli said in his 2017
Linaro Connect session, but there is still quite a bit of work to be done.
While this scheduler was originally intended for realtime workloads, there is
reason to believe that it is well suited for other settings, including the
embedded and mobile world. In this talk, he gave a summary of what the
deadline scheduler provides now and the changes that are envisioned for the
near (and not-so-near) future. | | 9:40p |
Red Hat Product Security Risk Report 2016 Red Hat has released its annual
report on the vulnerabilities that afflicted its products and how they were handled. " Looking only at issues affecting base Red Hat
Enterprise Linux releases, we released 38 Critical security advisories
addressing 50 Critical vulnerabilities. Of those issues, 100% had fixes the
same or next day after the issue was public. During that same timeframe,
across the whole Red Hat portfolio, 76% of Critical issues had updates to
address them the same or next day after the issue was public with 98%
addressed within a week of the issue being public." | | 10:34p |
Haas: Parallel Query v2 Robert Haas describes
the many parallelism enhancements in the upcoming PostgreSQL 10 release. " The Gather node introduced in PostgreSQL 9.6 gathers
results from all workers in an arbitrary order. That's fine if the data
that the workers were producing had no particular ordering anyway, but if
each worker is producing sorted output, then it would be nice to gather
those results in a way that preserves the sort order. This is what Gather
Merge does. It can speed up queries where it's useful for the results of
the parallel portion of the plan to have a particular sort order, and where
the parallel portion of the plan produces enough rows that performing an
ordinary Gather followed by a Sort would be expensive." |
|