Add Qualcomm 2.7->3.4 improvements session

Fill the remaining lightning talk slots with a single session from
Qualcomm on improvements made in upgrading from 2.7 to 3.4.

Change-Id: I0749e8dd4caa90dae48f1f366dd391ff2395f88c

schedule.md

diff --git a/schedule.md b/schedule.md
index 90ae4ef..c9bf018 100644
--- a/schedule.md
+++ b/schedule.md
@@ -11,9 +11,7 @@
 |  9:40 PST / 18:40 CET | [Code Owners: Demo of the `code-owners` plugin](sessions/code-owners.md)                |
 | 10:10 PST / 19:10 CET | [Using GitHub Actions with GerritHub](lightning-talks/gerrithub-and-github-actions.md)  |
 | 10:20 PDT / 19:20 CET | [Is Historical Data An Appropriate Benchmark For Review Recommendation Systems?](lightning-talks/Is-Historical-Data-an-Appropriate-Benchmark-For-Review-Recommendation-Systems.md) |
-| 10:30 PDT / 19:30 CET | Lightning talk 3 - __available for proposals__                                          |
-| 10:40 PDT / 19:40 CET | Lightning talk 4 - __available for proposals__                                          |
-| 10:50 PDT / 19:50 CET | Lightning talk 5 - __available for proposals__                                          |
+| 10:30 PDT / 19:30 CET | [Qualcomm 2.7 -> 3.4+ Data Upgrade Status, Issues, and Plans](sessions/2.7-to-3.4-upgrade-improvements.md) |
 | 11:00 PDT / 20:00 CET | End of Day 1                                                                            |
 
 ### Friday, 3rd December

sessions/2.7-to-3.4-upgrade-improvements.md

diff --git a/sessions/2.7-to-3.4-upgrade-improvements.md b/sessions/2.7-to-3.4-upgrade-improvements.md
new file mode 100644
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+# Qualcomm 2.7 -> 3.4+ Data Upgrade Status, Issues, and Plans
+
+Qualcomm [has been working on](https://groups.google.com/g/repo-discuss/c/WVwvngCkRMs/)
+improving the performance of all the migration steps required to
+upgrade a very large Gerrit site from a 2.7 fork to vanilla 3.4+.
+
+Martin will give a quick overview and Kaushik and Adithya will provide
+more detail on specific improvements. We'll also cover planned future
+work in this area.
+
+*[Martin Fick, Qualcomm, Gerrit Maintainer](../speakers.md#mfick)*
+*[Kaushik Lingarkar, Qualcomm](../speakers.md#kaushikl)*
+*[Adithya Chakilam, Qualcomm](../speakers.md#achakila)*

speakers.md

diff --git a/speakers.md b/speakers.md
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+++ b/speakers.md
@@ -107,3 +107,28 @@
 and development of various tools and plugins for Gerrit, such as DevOps
 analytics, multi-site and chronicle-map. Recently, he zeroed in on the
 integration of Gerrit with the cloud.
+
+### Martin Fick - Qualcomm {#mfick}
+
+Martin made his first Gerrit contribution back in June 2010 and just
+over a year later became one of the first two maintainers added to the
+project (Saša Živkov being the other). Since then he's continued to
+improve Gerrit workflows, plugin extendability, reliability, and
+performance. He especially focuses on multi-primary functionality and
+compatibility.
+
+### Kaushik Lingarkar - Qualcomm {#kaushikl}
+
+Kaushik joined Qualcomm over 12 years ago and has had a variety of
+roles, often related to Gerrit or workflows using Gerrit. He made his
+first Gerrit contribution in 2013 and has made many more in 2020 and
+2021 as a full-time member of the Qualcomm Gerrit team. His major focus
+over the past year has been improving the performance of upgrading a
+very large 2.7 fork Gerrit site to vanilla 3.4+.
+
+### Adithya Chakilam - Qualcomm {#achakila}
+
+Adithya joined the Qualcomm Gerrit team in June 2020 and quickly started
+contributing changes. So far he's explored the replication plugin, 2.16
+and earlier schema migrations, plugin provided change query attributes,
+JGit, and offline reindexing.