The rpc.quotad daemon pegs a cpu at 100% when using tirpc. This has been reported and resolved in RHEL/FC: https://bugzilla.redhat.com/show_bug.cgi?id=1575956 Is it possible to include the patch in the Gentoo build.
I can confirm this bug, but it is in version 4.04-r1. There is a patch on https://sourceforge.net/p/linuxquota/feature-requests/16/ My emerge --info: emerge --info Portage 2.3.40 (python 3.6.5-final-0, hardened/linux/amd64/no-multilib, gcc-6.4.0, glibc-2.26-r7, 4.14.65-gentoo x86_64) ================================================================= System uname: Linux-4.14.65-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5440_@_2.83GHz-with-gentoo-2.4.1 KiB Mem: 49458024 total, 48743916 free KiB Swap: 4194300 total, 4194300 free Timestamp of repository gentoo: Tue, 18 Sep 2018 00:30:01 +0000 Head commit of repository gentoo: bd7ab00b7e9b363d24ff38e9e8877e8acc3b2aba sh bash 4.4_p12 ld GNU ld (Gentoo 2.29.1 p3) 2.29.1 app-shells/bash: 4.4_p12::gentoo dev-lang/perl: 5.24.3-r1::gentoo dev-lang/python: 2.7.15::gentoo, 3.5.4-r1::gentoo, 3.6.5::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.4.1-r2::gentoo sys-apps/openrc: 0.34.11::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.69-r4::gentoo sys-devel/automake: 1.15.1-r2::gentoo sys-devel/binutils: 2.29.1-r1::gentoo, 2.30-r2::gentoo sys-devel/gcc: 6.4.0-r1::gentoo, 7.3.0-r3::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.13::gentoo (virtual/os-headers) sys-libs/glibc: 2.26-r7::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-metamanifest: yes sync-rsync-verify-jobs: 1 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=native" DISTDIR="/usr/portage/distfiles" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://ftp.halifax.rwth-aachen.de/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo" LANG="de_DE.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="acl amd64 berkdb bindist bzip2 cli crypt cxx dri gdbm hardened iconv ipv6 libtirpc mmx modules ncurses nls nptl openmp pam pcre pie readline seccomp sse sse2 ssl ssp tcpd unicode urandom xattr xtpax zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="actions alias authn_alias authn_anon authn_core authn_dbm authn_file authz_core authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif socache_shmcb speling status unique_id unixd userdir usertrack vhost_alias auth_digest" CALLIGRA_FEATURES="karbon plan sheets stage words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-0" POSTGRES_TARGETS="postgres9_5 postgres10" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" RUBY_TARGETS="ruby23" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b97ff58fca5ce104dbc558200389dd6ddda9e64e commit b97ff58fca5ce104dbc558200389dd6ddda9e64e Author: Lars Wendler <polynomial-c@gentoo.org> AuthorDate: 2018-09-18 08:54:01 +0000 Commit: Lars Wendler <polynomial-c@gentoo.org> CommitDate: 2018-09-18 08:54:01 +0000 sys-fs/quota: Fixed high CPU usage with USE="rpc". Closes: https://bugs.gentoo.org/658022 Package-Manager: Portage-2.3.49, Repoman-2.3.10 .../files/quota-4.04-Listen-on-a-TCP-socket.patch | 77 ++++++++++++++++++++ sys-fs/quota/quota-4.04-r2.ebuild | 82 ++++++++++++++++++++++ 2 files changed, 159 insertions(+)
Sorry for the long delay to fix this.
