Signatures with less than 300M of available memory

oom_signatures.py

import requests


def main():
    url = 'https://crash-stats.mozilla.com/api/SuperSearch/'
    params = {
        'product': 'Firefox',
        '_aggs.signature': [
            '_histogram.available_physical_memory',
            '_histogram.available_virtual_memory',
            '_histogram.available_page_file',
        ],
        '_histogram_interval.available_physical_memory': 300000000,
        '_histogram_interval.available_virtual_memory': 300000000,
        '_histogram_interval.available_page_file': 300000000,
    }

    r = requests.get(url, params=params)
    data = r.json()

    signatures = data['facets']['signature']

    memory_fields = (
        'available_physical_memory',
        'available_virtual_memory',
        'available_page_file',
    )

    for sig in signatures:
        half_total = sig['count'] / 2

        for field in memory_fields:
            facet_name = 'histogram_' + field
            facet_data = sig['facets'][facet_name]

            for mem in facet_data:
                if mem['term'] == 0 and mem['count'] > half_total:
                    print sig['term']

if __name__ == '__main__':
    main()

Results I'm getting running this script:

OOM | small
EMPTY: no crashing thread identified; ERROR_NO_MINIDUMP_HEADER
moz_abort | pages_commit
OOM | large | NS_ABORT_OOM(unsigned int) | nsSameProcessAsyncMessageBase::nsSameProcessAsyncMessageBase(JSContext*, nsAString_internal const&, mozilla::dom::StructuredCloneData const&, JS::Handle<T>, nsIPrincipal*)
OOM | unknown | js::CrashAtUnhandlableOOM(char const*) | js::gc::StoreBuffer::MonoTypeBuffer<T>::trace(js::gc::StoreBuffer*, js::TenuringTracer&)
mozilla::dom::Promise::MaybeSettle(JS::Handle<T>, mozilla::dom::Promise::PromiseState)