<s>
Plumbr	B-Language
was	O
an	O
Estonian	O
software	O
product	O
company	O
founded	O
in	O
late	O
2011	O
that	O
developed	O
performance	O
monitoring	O
software	O
.	O
</s>
<s>
The	O
Plumbr	B-Language
product	O
was	O
built	O
on	O
top	O
of	O
a	O
proprietary	O
algorithm	O
that	O
automatically	O
detected	O
the	O
root	O
causes	O
of	O
performance	O
issues	O
by	O
interpreting	O
application	O
performance	O
data	O
.	O
</s>
<s>
In	O
October	O
2020	O
,	O
Plumbr	B-Language
was	O
acquired	O
by	O
Splunk	B-General_Concept
.	O
</s>
<s>
Plumbr	B-Language
monitored	O
customers	O
 '	O
JVM	O
applications	O
for	O
memory	B-Error_Name
leaks	I-Error_Name
,	O
garbage	B-General_Concept
collection	I-General_Concept
pauses	O
and	O
locked	B-Operating_System
threads	I-Operating_System
.	O
</s>
<s>
Plumbr	B-Language
problem	O
detection	O
algorithms	O
were	O
based	O
on	O
analysis	O
of	O
performance	O
data	O
of	O
thousands	O
of	O
applications	O
.	O
</s>
<s>
Plumbr	B-Language
consisted	O
of	O
an	O
agent	O
and	O
a	O
portal	O
.	O
</s>
<s>
Plumbr	B-Language
Agent	O
was	O
attached	O
to	O
application	O
runtime	O
and	O
sent	O
memory	O
usage	O
and	O
garbage	B-General_Concept
collection	I-General_Concept
information	O
to	O
Plumbr	B-Language
Portal	O
.	O
</s>
<s>
On	O
Plumbr	B-Language
Portal	O
one	O
could	O
see	O
information	O
such	O
as	O
heap	O
and	O
permgen	O
memory	O
usage	O
,	O
garbage	B-General_Concept
collection	I-General_Concept
pauses	O
 '	O
and	O
lock	O
contention	O
duration	O
.	O
</s>
<s>
In	O
case	O
of	O
performance	O
incidents	O
Plumbr	B-Language
provided	O
its	O
users	O
with	O
information	O
on	O
problem	O
severity	O
and	O
problem	O
's	O
root	O
cause	O
location	O
in	O
source	O
code	O
or	O
runtime	O
configuration	O
,	O
and	O
listed	O
the	O
steps	O
needed	O
to	O
take	O
to	O
remediate	O
the	O
problem	O
.	O
</s>
