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The following are code excerpts from the mongo-perf js tests used when the difference in overhead between the storage engine was observed. The baseline case basically measures the throughput of inserting documents that has 20 integer fields. The compare case does the same but has a validation filter set up to ensure that all 20 fields are present, and are integers before a document is inserted.
tests.push( { name: "Insert.DocValidation.TwentyInt.Baseline",
tags: ['insert', 'baseline'],
pre: function( collection) {
collection.drop();
},
ops: [ {
op: "insert",
doc: {
a: {"#RAND_INT": [0, 10000]},
b: {"#RAND_INT": [0, 10000]},
c: {"#RAND_INT": [0, 10000]},
d: {"#RAND_INT": [0, 10000]},
e: {"#RAND_INT": [0, 10000]},
f: {"#RAND_INT": [0, 10000]},
g: {"#RAND_INT": [0, 10000]},
h: {"#RAND_INT": [0, 10000]},
i: {"#RAND_INT": [0, 10000]},
j: {"#RAND_INT": [0, 10000]},
k: {"#RAND_INT": [0, 10000]},
l: {"#RAND_INT": [0, 10000]},
m: {"#RAND_INT": [0, 10000]},
n: {"#RAND_INT": [0, 10000]},
o: {"#RAND_INT": [0, 10000]},
p: {"#RAND_INT": [0, 10000]},
q: {"#RAND_INT": [0, 10000]},
r: {"#RAND_INT": [0, 10000]},
s: {"#RAND_INT": [0, 10000]},
t: {"#RAND_INT": [0, 10000]}
} }
]});
tests.push( { name: "Insert.DocValidation.TwentyInt",
tags: ['insert', 'baseline'],
pre: function( collection) {
collection.drop();
collection.runCommand("create", {"validator": {
$and: [
{a: {$exists: true}},
{a: {$type: 16}},
{b: {$exists: true}},
{b: {$type: 16}},
{c: {$exists: true}},
{c: {$type: 16}},
{d: {$exists: true}},
{d: {$type: 16}},
{e: {$exists: true}},
{e: {$type: 16}},
{f: {$exists: true}},
{f: {$type: 16}},
{g: {$exists: true}},
{g: {$type: 16}},
{h: {$exists: true}},
{h: {$type: 16}},
{a: {$exists: true}},
{a: {$type: 16}},
{i: {$exists: true}},
{i: {$type: 16}},
{j: {$exists: true}},
{j: {$type: 16}},
{k: {$exists: true}},
{k: {$type: 16}},
{l: {$exists: true}},
{l: {$type: 16}},
{m: {$exists: true}},
{m: {$type: 16}},
{n: {$exists: true}},
{n: {$type: 16}},
{o: {$exists: true}},
{o: {$type: 16}},
{p: {$exists: true}},
{p: {$type: 16}},
{q: {$exists: true}},
{q: {$type: 16}},
{r: {$exists: true}},
{r: {$type: 16}},
{s: {$exists: true}},
{s: {$type: 16}},
{t: {$exists: true}},
{t: {$type: 16}},
] }});
},
ops: [ {
op: "insert",
doc: {
a: {"#RAND_INT": [0, 10000]},
b: {"#RAND_INT": [0, 10000]},
c: {"#RAND_INT": [0, 10000]},
d: {"#RAND_INT": [0, 10000]},
e: {"#RAND_INT": [0, 10000]},
f: {"#RAND_INT": [0, 10000]},
g: {"#RAND_INT": [0, 10000]},
h: {"#RAND_INT": [0, 10000]},
i: {"#RAND_INT": [0, 10000]},
j: {"#RAND_INT": [0, 10000]},
k: {"#RAND_INT": [0, 10000]},
l: {"#RAND_INT": [0, 10000]},
m: {"#RAND_INT": [0, 10000]},
n: {"#RAND_INT": [0, 10000]},
o: {"#RAND_INT": [0, 10000]},
p: {"#RAND_INT": [0, 10000]},
q: {"#RAND_INT": [0, 10000]},
r: {"#RAND_INT": [0, 10000]},
s: {"#RAND_INT": [0, 10000]},
t: {"#RAND_INT": [0, 10000]}
} }
]});
Bug
Major - P3