diff --git a/sys-cluster/otf2/Manifest b/sys-cluster/otf2/Manifest
new file mode 100644
index 0000000000..4ff1ad5251
--- /dev/null
+++ b/sys-cluster/otf2/Manifest
@@ -0,0 +1 @@
+DIST otf2-2.3.tar.gz 5321226 BLAKE2B a217ac2bcc0fa777dccc99a0f90a143b3cfea66ff717cfe66f68d2d59407023b1f0e419d9c4275d27f201fa3df0c5a89d4730052039144b02a2136e390e85fbb SHA512 c27c768f178e512c46683667d70bc2ad3871b17b8978356b13917d3fc12b49b4ee5d5767e9e10a247bbc7f2e911aaae7455bfec8f36704236d55c16454fa0a4c
diff --git a/sys-cluster/otf2/metadata.xml b/sys-cluster/otf2/metadata.xml
new file mode 100644
index 0000000000..0c04defaed
--- /dev/null
+++ b/sys-cluster/otf2/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>lssndrbarbieri@gmail.com</email>
+		<name>Alessandro Barbieri</name>
+	</maintainer>
+	<use>
+		<flag name="sionlib">Enable <pkg>sys-cluster/sionlib</pkg> support</flag>
+	</use>
+</pkgmetadata>
diff --git a/sys-cluster/otf2/otf2-2.3.ebuild b/sys-cluster/otf2/otf2-2.3.ebuild
new file mode 100644
index 0000000000..078fda8688
--- /dev/null
+++ b/sys-cluster/otf2/otf2-2.3.ebuild
@@ -0,0 +1,49 @@
+# Copyright 2019-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( pypy3 python3_{8..10} )
+
+inherit python-single-r1
+
+DESCRIPTION="highly scalable, memory efficient event trace data format"
+HOMEPAGE="https://www.vi-hps.org/projects/score-p"
+SRC_URI="http://perftools.pages.jsc.fz-juelich.de/cicd/otf2/tags/${P}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="debug sionlib test"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	$(python_gen_cond_dep 'dev-python/six[${PYTHON_USEDEP}]')
+
+	sionlib? ( sys-cluster/sionlib[tools] )
+"
+DEPEND="${RDEPEND}"
+
+#RESTRICT="!test? ( test )"
+RESTRICT="test" #tests are failing
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+src_configure() {
+	local myconf=(
+		--disable-platform-mic
+		--disable-static
+		--enable-shared
+
+		$(use_enable test backend-test-runs)
+		$(use_enable debug)
+		$(use_with sionlib)
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_install() {
+	default
+
+	find "${ED}" -name '*.la' -delete || die
+}