diff --git a/README.md b/README.md
index a265e029..ea2c7d20 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,11 @@ environment and define a default project.
 * Go to `http://localhost:8000/admin/codespeed/project/`
   and create a project.
 
+An environment that no longer receives results can be marked as historical
+by unticking its "Active" field in the admin. Historical environments keep
+their data and permalinks, but are listed in a folded "Historical" group in
+the Changes, Timeline and Comparison views and are not selected by default.
+
 Check the field "Track changes" and, in case you want version control
 integration, configure the relevant fields.
 
@@ -192,6 +197,7 @@ several parameters (the file includes comments with full examples).
   the Timeline and Changes views.
 * `DEF_ENVIRONMENT`: Defines which environment should be selected as default
   in the Changes and Timeline views.
+  Without it, the first *active* environment is used.
 * `CHANGE_THRESHOLD`
 * `TREND_THRESHOLD`
 
@@ -229,8 +235,9 @@ The main customization for the homepage is to display either the reports
 * `NORMALIZATION`: Defines whether normalization should be enabled as default
   in the Comparison view.
 * `CHART_ORIENTATION`: horizontal or vertical
-* `COMP_ENVIRONMENTS_DEFAULT`: `all` (the default) checks every environment;
-  `default` checks only `DEF_ENVIRONMENT`, or the first environment.
+* `COMP_ENVIRONMENTS_DEFAULT`: `all` (the default) checks every active
+  environment; `default` checks only `DEF_ENVIRONMENT`, or the first active
+  environment.
 * `COMP_EXECUTABLES`: per default all executables will be checked. When there
   are a large number of tags or executables, it is better to only select a few
   so that the plots are not too cluttered.
diff --git a/codespeed/admin.py b/codespeed/admin.py
index 678cf3fd..681b8961 100644
--- a/codespeed/admin.py
+++ b/codespeed/admin.py
@@ -76,8 +76,10 @@ class BenchmarkAdmin(admin.ModelAdmin):
 
 @admin.register(Environment)
 class EnvironmentAdmin(admin.ModelAdmin):
-    list_display = ('name', 'cpu', 'memory', 'os', 'kernel')
-    ordering = ['name']
+    list_display = ('name', 'cpu', 'memory', 'os', 'kernel', 'active')
+    list_editable = ('active',)
+    list_filter = ('active',)
+    ordering = ['-active', 'name']
     search_fields = ('name', 'cpu', 'memory', 'os', 'kernel')
 
 
diff --git a/codespeed/management/commands/import_sqlite_dump.py b/codespeed/management/commands/import_sqlite_dump.py
index 9aba6198..752da791 100644
--- a/codespeed/management/commands/import_sqlite_dump.py
+++ b/codespeed/management/commands/import_sqlite_dump.py
@@ -19,6 +19,7 @@
 _BOOL_COLS = {
     'codespeed_project':   {'track'},
     'codespeed_branch':    {'display_on_comparison_page'},
+    'codespeed_environment': {'active'},
     'codespeed_benchmark': {'lessisbetter', 'default_on_comparison'},
 }
 
diff --git a/codespeed/migrations/0007_environment_active.py b/codespeed/migrations/0007_environment_active.py
new file mode 100644
index 00000000..a864dedb
--- /dev/null
+++ b/codespeed/migrations/0007_environment_active.py
@@ -0,0 +1,18 @@
+# Generated by Django 6.1.2 on 2026-11-13 18:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('codespeed', '0006_alter_benchmark_name_alter_benchmark_unique_together'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='environment',
+            name='active',
+            field=models.BooleanField(db_default=True, default=True, help_text='Untick for a historical environment that no longer receives results. It is then listed in a folded "Historical" group and not selected by default.'),
+        ),
+    ]
diff --git a/codespeed/models.py b/codespeed/models.py
index 12a6f4aa..c5d740de 100644
--- a/codespeed/models.py
+++ b/codespeed/models.py
@@ -214,6 +214,11 @@ class Environment(models.Model):
     memory = models.CharField(max_length=100, blank=True)
     os = models.CharField(max_length=100, blank=True)
     kernel = models.CharField(max_length=100, blank=True)
+    active = models.BooleanField(
+        default=True, db_default=True,
+        help_text="Untick for a historical environment that no longer "
+                  "receives results. It is then listed in a folded "
+                  "\"Historical\" group and not selected by default.")
 
     def __str__(self):
         return self.name
diff --git a/codespeed/static/css/main.css b/codespeed/static/css/main.css
index 3b3700de..da548606 100644
--- a/codespeed/static/css/main.css
+++ b/codespeed/static/css/main.css
@@ -379,7 +379,7 @@ div.about_content p, div.about_content li, div.about_content h2, div.about_conte
 .compplot-wrap { display: inline-block; }
 
 a.togglefold { color: var(--text); font-weight: 500; }
-a.togglefold:hover { text-decoration: none; }
+a.togglefold:hover, a.togglefold:focus { text-decoration: none; }
 a.togglefold::before {
     /* Bootstrap Icons chevron-right (MIT, twbs/icons), coloured via mask */
     content: '';
diff --git a/codespeed/static/js/changes.js b/codespeed/static/js/changes.js
index 2c93f153..fc612580 100644
--- a/codespeed/static/js/changes.js
+++ b/codespeed/static/js/changes.js
@@ -177,6 +177,7 @@ function init(defaults) {
     $("input[name='executable']").change(changeRevisions);
 
     $("#env" + defaults.environment).prop('checked', true);
+    unfoldGroups($("input[name='environment']:checked"));
     $("input[name='environment']").change(function() {
         updateRevisionMarkers($("input[name='environment']:checked").val());
         refreshContent();
diff --git a/codespeed/static/js/codespeed.js b/codespeed/static/js/codespeed.js
index a31111d6..1c1fafb6 100644
--- a/codespeed/static/js/codespeed.js
+++ b/codespeed/static/js/codespeed.js
@@ -23,6 +23,14 @@ function getLoadText(text, h) {
     return loadtext;
 }
 
+// Unfold the .togglefold groups holding the given inputs.
+function unfoldGroups(inputs) {
+    inputs.closest("ul").each(function() {
+        $(this).children("li").show();
+        $(this).children("a.togglefold").removeClass('folded');
+    });
+}
+
 $(function() {
     // Check all and none links
     $('.checkall').each(function() {
diff --git a/codespeed/static/js/timeline.js b/codespeed/static/js/timeline.js
index 50ed2352..55b60d0e 100644
--- a/codespeed/static/js/timeline.js
+++ b/codespeed/static/js/timeline.js
@@ -625,7 +625,7 @@ function setValuesOfInputFields(params) {
     }
     benchRadio.prop('checked', true);
     // reveal the suite accordion section that holds the selected benchmark
-    benchRadio.closest("ul").show().children("a.togglefold").removeClass('folded');
+    unfoldGroups(benchRadio);
 
     var envDefault = (defaults.environments || []).map(String).join(',');
     var envIds = valueOrDefault(params.env, envDefault).split(',').filter(Boolean);
@@ -633,6 +633,7 @@ function setValuesOfInputFields(params) {
     envIds.forEach(function(envId) {
         envSel.filter("[value='" + envId.trim() + "']").prop('checked', true);
     });
+    unfoldGroups(envSel.filter(':checked'));
     updateEnvIndicators();
     updateExeColors();
     $("#baselinecolor").css("background-color", baselineColor);
diff --git a/codespeed/templates/codespeed/changes.html b/codespeed/templates/codespeed/changes.html
index c55ee513..0d9ffa96 100644
--- a/codespeed/templates/codespeed/changes.html
+++ b/codespeed/templates/codespeed/changes.html
@@ -22,7 +22,15 @@
         <label for="env{{ env.id }}">{{ env }}</label>
       </li>
     {% endfor %}
-    </ul>
+    </ul>{% if historical_environments %}
+    <ul class="historical"><a href="#" class="togglefold{% if historical_folded %} folded{% endif %}" title="Environments that are no longer in use and no longer receive results">Historical</a>
+    {% for env in historical_environments %}
+      <li{% if historical_folded %} style="display: none"{% endif %} title="{{ env.os }}, {{ env.cpu }}">
+        <input id="env{{ env.id }}" type="radio" name="environment" value="{{ env.id }}" />
+        <label for="env{{ env.id }}">{{ env }}</label>
+      </li>
+    {% endfor %}
+    </ul>{% endif %}
   </div>
 </div>
 
diff --git a/codespeed/templates/codespeed/changes_table.html b/codespeed/templates/codespeed/changes_table.html
index c665bc07..d1415d61 100644
--- a/codespeed/templates/codespeed/changes_table.html
+++ b/codespeed/templates/codespeed/changes_table.html
@@ -56,7 +56,7 @@
     </tr>
   </thead>
   <tbody>
-    <tr><td class="infofirst">Name</td><td>{{ env.name }}</td></tr>
+    <tr><td class="infofirst">Name</td><td>{{ env.name }}{% if not env.active %} (historical){% endif %}</td></tr>
     <tr><td class="infofirst">CPU</td><td>{{ env.cpu }}</td></tr>
     <tr><td class="infofirst">Memory</td><td>{{ env.memory }}</td></tr>
     <tr><td class="infofirst">OS</td><td>{{ env.os }}</td></tr>
diff --git a/codespeed/templates/codespeed/comparison.html b/codespeed/templates/codespeed/comparison.html
index 31d1bcea..191fed49 100644
--- a/codespeed/templates/codespeed/comparison.html
+++ b/codespeed/templates/codespeed/comparison.html
@@ -18,22 +18,29 @@
 <div id="environment" class="sidebox">
   <div class="boxhead"><h2>Environments</h2></div>
   <div class="boxbody">
-    <ul><a href="#" class="togglefold">Environments</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
+    <ul><a href="#" class="togglefold{% if enviros_folded %} folded{% endif %}">Environments</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
     {% for env in enviros %}
-      <li title="{{ env.os }}, {{ env.cpu }}">
+      <li{% if enviros_folded %} style="display: none"{% endif %} title="{{ env.os }}, {{ env.cpu }}">
         <input id="env_{{ env.id }}" type="checkbox" name="environments" value="{{ env.id }}"{% if env in checkedenviros %} checked{% endif %} />
         <label for="env_{{ env.id }}">{{ env }}</label>
       </li>{% endfor %}
-    </ul>
+    </ul>{% if historical_enviros %}
+    <ul class="historical"><a href="#" class="togglefold{% if historical_folded %} folded{% endif %}" title="Environments that are no longer in use and no longer receive results">Historical</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
+    {% for env in historical_enviros %}
+      <li{% if historical_folded %} style="display: none"{% endif %} title="{{ env.os }}, {{ env.cpu }}">
+        <input id="env_{{ env.id }}" type="checkbox" name="environments" value="{{ env.id }}"{% if env in checkedenviros %} checked{% endif %} />
+        <label for="env_{{ env.id }}">{{ env }}</label>
+      </li>{% endfor %}
+    </ul>{% endif %}
   </div>
 </div>
 <div id="executable" class="sidebox">
   <div class="boxhead"><h2>Executables</h2></div>
   <div class="boxbody">
     {% for proj, executable in executables.items %}
-    <ul><a href="#" class="togglefold">{{ proj }}</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
+    <ul><a href="#" class="togglefold{% if proj in folded_exe_groups %} folded{% endif %}">{{ proj }}</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
     {% for exe in executable %}
-      <li title="{{ exe.executable }} - {{ exe.revision }}">
+      <li{% if proj in folded_exe_groups %} style="display: none"{% endif %} title="{{ exe.executable }} - {{ exe.revision }}">
         {% if exe.key in checkedexecutables %}
             <input id="exe_{{ exe.key }}" type="checkbox" name="executables" value="{{ exe.key }}" checked />
         {% else %}
@@ -48,9 +55,9 @@
   <div class="boxhead"><h2>Benchmarks</h2></div>
   <div class="boxbody">
   {% for key,benchlist in benchmarks.items %}
-  <ul><a href="#" class="togglefold">{{ key }}</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
+  <ul><a href="#" class="togglefold{% if key in folded_bench_groups %} folded{% endif %}">{{ key }}</a> <span class="checklinks">(<a href="#" class="checkall">All</a>, <a href="#" class="uncheckall">None</a>)</span>
     {% for bench in benchlist|dictsort:"name" %}
-    <li title="{{ bench.description }}">
+    <li{% if key in folded_bench_groups %} style="display: none"{% endif %} title="{{ bench.description }}">
       {% if bench in checkedbenchmarks %}
         <input id="benchmark_{{ bench.id }}" type="checkbox" name="benchmarks" value="{{ bench.id }}" data-source="{{ bench.source }}" checked />
       {% else %}
diff --git a/codespeed/templates/codespeed/timeline.html b/codespeed/templates/codespeed/timeline.html
index 971b1adc..b0f5225d 100644
--- a/codespeed/templates/codespeed/timeline.html
+++ b/codespeed/templates/codespeed/timeline.html
@@ -27,7 +27,15 @@
         <label for="env{{ env.name }}">{{ env }}</label><div class="envlinecolor"></div>
       </li>
     {% endfor %}
-    </ul>
+    </ul>{% if historical_environments %}
+    <ul class="historical"><a href="#" class="togglefold{% if historical_folded %} folded{% endif %}" title="Environments that are no longer in use and no longer receive results">Historical</a>
+    {% for env in historical_environments %}
+      <li{% if historical_folded %} style="display: none"{% endif %} title="{{ env.os }}, {{ env.cpu }}">
+        <input id="env{{ env.name }}" type="checkbox" name="environments" value="{{ env.id }}" />
+        <label for="env{{ env.name }}">{{ env }}</label><div class="envlinecolor"></div>
+      </li>
+    {% endfor %}
+    </ul>{% endif %}
   </div>
 </div>
 <div id="executable" class="sidebox">
@@ -72,9 +80,9 @@
   <div id="benchmarklist">
   {% regroup benchmarks by get_source_display as benchmark_groups %}
   {% for group in benchmark_groups %}
-  <ul>{% if benchmark_groups|length > 1 %}<a href="#" class="togglefold">{{ group.grouper }}</a>{% endif %}
+  <ul>{% if benchmark_groups|length > 1 %}<a href="#" class="togglefold{% if defaultbenchmark not in group.list %} folded{% endif %}">{{ group.grouper }}</a>{% endif %}
     {% for bench in group.list|dictsort:"name" %}
-    <li title="{{ bench.description }}">
+    <li{% if benchmark_groups|length > 1 and defaultbenchmark not in group.list %} style="display: none"{% endif %} title="{{ bench.description }}">
       <input id="benchmark_{{ bench.id }}" type="radio" name="benchmark" value="{{ bench.ident }}" />
       <label for="benchmark_{{ bench.id }}">{{ bench }}</label>
     </li>
diff --git a/codespeed/tests/test_views.py b/codespeed/tests/test_views.py
index e133af5c..938eb397 100644
--- a/codespeed/tests/test_views.py
+++ b/codespeed/tests/test_views.py
@@ -476,8 +476,14 @@ def test_no_source_fold_with_one_source(self):
 
     def test_source_fold_with_several_sources(self):
         Benchmark.objects.create(name='float', source='pyperformance')
+        # Suites are rendered folded, except the one of the selected benchmark
         response = self.client.get(reverse('timeline'))
-        self.assertContains(response, 'class="togglefold">Legacy</a>')
+        self.assertContains(response, 'class="togglefold folded">Legacy</a>')
+        self.assertContains(
+            response, 'class="togglefold folded">PyPerformance</a>')
+        response = self.client.get(
+            reverse('timeline'), {'ben': 'float.pyperformance'})
+        self.assertContains(response, 'class="togglefold folded">Legacy</a>')
         self.assertContains(response, 'class="togglefold">PyPerformance</a>')
 
     @override_settings(TIMELINE_GRID_REVISIONS=25)
@@ -516,11 +522,46 @@ def test_only_default_environment_checked(self):
         self.assertEqual(self.checked_env_names(response),
                          ['Dual Core', 'Quad Core'])
 
+    def test_historical_environments_not_checked_by_default(self):
+        self.quad.active = False
+        self.quad.save()
+        response = self.client.get(self.path)
+        self.assertEqual(self.checked_env_names(response), ['Dual Core'])
+        self.assertEqual(response.context['enviros'], [self.dual])
+        self.assertEqual(response.context['historical_enviros'], [self.quad])
+        self.assertContains(response, '>Historical</a>')
+        # Folded in the markup, not by script after the page has rendered
+        self.assertTrue(response.context['historical_folded'])
+        self.assertContains(response, 'class="togglefold folded"')
+        # Permalinks still select them
+        response = self.client.get(self.path, {'env': str(self.quad.id)})
+        self.assertFalse(response.context['historical_folded'])
+        self.assertEqual(self.checked_env_names(response), ['Quad Core'])
+
+    def test_no_historical_group_when_all_active(self):
+        response = self.client.get(self.path)
+        self.assertNotContains(response, '>Historical</a>')
+
     def test_benchmarks_grouped_by_units_with_one_source(self):
         response = self.client.get(self.path)
         self.assertEqual(list(response.context['benchmarks']), ['Time'])
         self.assertContains(response, 'class="togglefold">Time</a>')
 
+    def test_groups_with_nothing_checked_are_rendered_folded(self):
+        response = self.client.get(self.path)
+        self.assertFalse(response.context['enviros_folded'])
+        self.assertEqual(response.context['folded_exe_groups'], [])
+        self.assertEqual(response.context['folded_bench_groups'], [])
+        self.assertNotContains(response, 'togglefold folded')
+
+        Benchmark.objects.create(name='float', source='pyperformance',
+                                 default_on_comparison=False)
+        response = self.client.get(self.path)
+        self.assertEqual(response.context['folded_bench_groups'],
+                         ['PyPerformance'])
+        self.assertContains(
+            response, 'class="togglefold folded">PyPerformance</a>')
+
     def test_benchmarks_grouped_by_source_with_several_sources(self):
         Benchmark.objects.create(name='float', source='pyperformance')
         response = self.client.get(self.path)
diff --git a/codespeed/views.py b/codespeed/views.py
index c14a21ef..3ef36845 100644
--- a/codespeed/views.py
+++ b/codespeed/views.py
@@ -19,7 +19,8 @@
 from .auth import basic_auth_required
 from .models import (Environment, Report, Project, Revision, Result,
                      Executable, Benchmark, Branch)
-from .views_data import (get_default_environment, getbaselineexecutables,
+from .views_data import (get_default_environment, split_environments,
+                         getbaselineexecutables,
                          getdefaultexecutable, getcomparisonexes,
                          get_benchmark_results, get_num_revs_and_benchmarks,
                          get_stats_with_defaults, parse_benchmark_ident)
@@ -113,7 +114,7 @@ def gethistoricaldata(request):
     if settings.DEF_ENVIRONMENT:
         env = env.get(name=settings.DEF_ENVIRONMENT)
     else:
-        env = env.first()
+        env = env.order_by('-active', 'id').first()
 
     # Fetch Baseline data, filter by executable
     baseline_results = []
@@ -323,6 +324,7 @@ def comparison(request):
     enviros = Environment.objects.all()
     if not enviros:
         return no_environment_error(request)
+    active_enviros, historical_enviros = split_environments(enviros)
     checkedenviros = get_default_environment(enviros, data, multi=True)
     if 'env' not in data and \
             get_setting('COMP_ENVIRONMENTS_DEFAULT', 'all') == 'default':
@@ -473,6 +475,7 @@ def comparison(request):
             settings.CHART_ORIENTATION == 'horizontal'):
         selecteddirection = True
 
+    checked_bench_ids = {bench.id for bench in checkedbenchmarks}
     return render(request, 'codespeed/comparison.html', {
         'checkedexecutables': checkedexecutables,
         'checkedbenchmarks': checkedbenchmarks,
@@ -480,7 +483,19 @@ def comparison(request):
         'executables': executables,
         'benchmarks': benchmarks,
         'bench_units': json.dumps(bench_units),
-        'enviros': enviros,
+        'enviros': active_enviros,
+        'historical_enviros': historical_enviros,
+        'historical_folded': not any(
+            env in checkedenviros for env in historical_enviros),
+        # Sidebar groups with nothing checked are rendered folded
+        'enviros_folded': not any(
+            env in checkedenviros for env in active_enviros),
+        'folded_exe_groups': [
+            proj for proj, exes in executables.items()
+            if not any(exe['key'] in checkedexecutables for exe in exes)],
+        'folded_bench_groups': [
+            key for key, benchlist in benchmarks.items()
+            if not any(bench.id in checked_bench_ids for bench in benchlist)],
         'charts': charts,
         'selectedbaseline': selectedbaseline,
         'selectedchart': selectedchart,
@@ -687,6 +702,7 @@ def timeline(request):
     enviros = Environment.objects.all()
     if not enviros:
         return no_environment_error(request)
+    active_enviros, historical_enviros = split_environments(enviros)
     defaultenviro = get_default_environment(enviros, data)
     if 'env' in data:
         defaultenvironments = get_default_environment(enviros, data, multi=True)[:2]
@@ -832,7 +848,10 @@ def timeline(request):
         'grid_revisions': grid_revisions,
         'executables': executables,
         'benchmarks': benchmarks,
-        'environments': enviros,
+        'environments': active_enviros,
+        'historical_environments': historical_enviros,
+        'historical_folded': not any(
+            env in defaultenvironments for env in historical_enviros),
         'branch_list': branch_list,
         'defaultbranch': defaultbranch,
         'defaultequid': defaultequid,
@@ -938,6 +957,7 @@ def changes(request):
     enviros = Environment.objects.all()
     if not enviros:
         return no_environment_error(request)
+    active_enviros, historical_enviros = split_environments(enviros)
     defaultenv = get_default_environment(enviros, data)
 
     if not len(Project.objects.filter(track=True)):
@@ -1030,7 +1050,10 @@ def changes(request):
         'defaulttrend': defaulttrend,
         'defaultchangethres': defaultchangethres,
         'defaulttrendthres': defaulttrendthres,
-        'environments': enviros,
+        'environments': active_enviros,
+        'historical_environments': historical_enviros,
+        'historical_folded': not any(
+            env in defaultenv for env in historical_enviros),
         'executables': executables,
         'projectmatrix': projectmatrix,
         'revisionlists': revisionlists,
diff --git a/codespeed/views_data.py b/codespeed/views_data.py
index 40a63394..84cb63c8 100644
--- a/codespeed/views_data.py
+++ b/codespeed/views_data.py
@@ -25,11 +25,20 @@ def parse_benchmark_ident(ben):
     return ben, 'legacy'
 
 
+def split_environments(enviros):
+    """Split environments into ``(active, historical)`` lists."""
+    active, historical = [], []
+    for env in enviros:
+        (active if env.active else historical).append(env)
+    return active, historical
+
+
 def get_default_environment(enviros, data, multi=False):
     """Returns the default environment. Preference level is:
         * Present in URL parameters (permalinks)
         * Value in settings.py
-        * First Environment ID
+        * Active environments, the first one unless ``multi``
+        * All environments, if none of them is active
 
     """
     defaultenviros = []
@@ -54,9 +63,10 @@ def get_default_environment(enviros, data, multi=False):
                 if settings.DEF_ENVIRONMENT == env.name:
                     defaultenviros.append(env)
                     break
-    # Last fallback
+    # Last fallback: historical environments are only a default when there
+    # is nothing else
     if not defaultenviros:
-        defaultenviros = enviros
+        defaultenviros = split_environments(enviros)[0] or list(enviros)
     if multi:
         return defaultenviros
     else:
diff --git a/speed_pypy/admin_views.py b/speed_pypy/admin_views.py
index fd64b507..05d75168 100644
--- a/speed_pypy/admin_views.py
+++ b/speed_pypy/admin_views.py
@@ -47,7 +47,8 @@
     cpu TEXT NOT NULL,
     memory TEXT NOT NULL,
     os TEXT NOT NULL,
-    kernel TEXT NOT NULL
+    kernel TEXT NOT NULL,
+    active INTEGER NOT NULL DEFAULT 1
 );
 
 CREATE TABLE codespeed_benchmark (